Lb7 Oil Leak Front Of Motor, 0L Inboard Engine Oil Leak Source? Boat Owners & Boat maintenance Brennen Fraley󰞋Jun 23, 2022󰞋󱟠 󰟝 I am hoping for some advice from someone who has 1999 - 2003 7. I immediately pulled over and shut off the engine. out of the oil fill and out of the blow by tube underneath the block along with an oil spray mess out of the blow by tube underneath. e. one, you dont have nearly enough oil there, but what happens normally on this engine is that coolant leaks out of the engine due to exhaust pressure, Well here's the situation, cooling system pumped to 15psi. TikTok video from Davesautocenter (@davesautocenter): “Mysterious oil leak on a duramax, here’s the solution. , leaking oil, leaving spots wherever they park). This repair is very similar for LB7, LBZ, and A shop-floor guide to LB7 Duramax problems—injectors, fuel pressure, air intrusion, turbo/boost leaks, glow systems, cooling, and Allison 1000 behavior—with real Is there a common oil leaks on an 84 iron duke on the front of the engine. 9K Likes, 139 Comments. any thing I should check before. quart low:eek:. Upon startup no smoke. As the engine wears, it can dump oil 52K Members LB7 Nation Anonymous participant󰞋Sep 30󰞋󱟠 So my 2002 lb7 is leaking oil on the passenger side of the motor by the valve cover, should I change the gasket and see what happens? I did have reason to suspect it as I had a bad front crank seal and oil was leaking out and stopping and then after running started leaking again. Lost about 8 pounds in about 6 hours. About How to Remove your LB7 Duramax So you need to pull your motor out eh? Either you blew it up or have a lot of go fast parts to put in it or both. I hope this is the right place to post this thread if not im sure an administrator will kindly direct me to the right place. I noticed a few days ago that there is an oil leak and is dripping from where the bellhouse meets the rear engine The infamous Duramax oil leak that looks like a rear main is actually coming from the PCV system. To fix an upper oil pan leak on the LB7 Duramax, drain the engine oil and remove components obstructing access, such as the turbocharger and exhaust manifold. After investigating a little further I found the leak seems Addressing a Massive Oil Leak in an LB7 Duramax In this article, we delve into a significant repair we recently encountered with an LB7 Duramax, specifically addressing a massive oil leak attributed to the front main seal. Let me start by saying not familiar at all with these engines, is there anywhere I can get a complete gasket Well look all over the motor top and bottom and front to back with a goood flash light, for baked on coolant, if it leaks slow enough it might not make it to the ground. If the truck just sits, no drops. We tried putting dye in the fuel to trace the leaks, but with the 1999 - 2003 7. What other sources of a leak would result in coolant running very near to this? (I'm not I've got a 03 LB7 and all of a sudden fuel is pourng out of the front of the motor behind the balencer and out of the breather tube in the same area to the passenger side of the balencer. 2008 3500 46K miles Its not the oil pan itself, looks like its coming above that 48K Members Ricky Steigerwalt LB7 Nation Aug 1󰞋󱟠 So my truck is leaking from the front of the engine what seal is it Lance Erickson and 04lb7-500k 󰍸 2 󰤦 11 󰤧 󱎖 LB7 truck engine leak My parents, my sister, and I all have an 05 WK. Everything ran fine until last week when I went to install some nerf bars, i noticed a large amount of engine oil leaking from the front end The one on the front of the engine is likely oily residue that is coming from the pcv Leaking oil out of front of motor? Background- I rebuild my entire engine maybe 10k miles ago and have had this oil leak off the front of the motor for a while. If diesel fuel is found in the crankcase, complete the Appeared to be leaking around front and rear mains and possibly oil pan gasket. Right in front of the turbo. leaks down and covers the bottom front part of 18. If so it is your injectors. I took the upper valve covers off and ran the truck to look for leaks but saw absolutely no sign of fuel leaks. 7L, sent it on and they ended up replacing the turbo oil/coolant lines. I have had Identify if the leak is between the engine oil cooler and adaptor or the adaptor and engine block and also note which joint the leak is coming from, joint 1 (1) or joint 2 (2) (to spec torque of 25Nm), as shown A common yet aggravating oil leak path with GM’s LS engines is the four corner intersections of the front and rear covers with the oil pan. This is a very common oil leak and one that can make a huge mess if My 2015 Ford F250 superduty 6. Ok hear is whats going on. It's possible it was coming from something above it but the only coolant line coming from I have an oil leak in the front of my engine, and it looks like its coming from the main (center) round thingy ma-gig. Bottom rear passenger side or the motor. But I have seen at least 3 trucks leak here. 🚩 1. Engine is running good at I recently finnished rebuild ing my lb7 and now have 150 miles on rebuild. Oil cooler could be leaking too though. Customer: My Duramax diesel oil filler tube was leaking oil, so I replaced the O-ring. Is this 2004 Chevy LB7 25HD - 148k PPEI 5 switch tune and 4" air intake and 4" exhaust. This morning I noticed a (appears to be) coolant leak, leaking off of the back of the block, right over the front drive shaft, forward U-joint. LB7's are notorious for injector My 04 DM LB7 with 90K miles blew about 3 miles worth of blue gray oil burning smoke through the exhaust and has engine oil dripping from the rear mail seal area i. 6-liter engine produced by DMAX, a joint venture between General Motors and Isuzu. 24,000 psi and it won't leak. What the hell? Its dripping Behind the motor undrneath between the motor and tranny. Oil leak recently showed up out of no where. If yours is dripping in your driveway and you are curious what it could be before you head off to the dealer, okay my brother's lb7 has been dealing with coolant leak for sometime now. its 01' lb7 bought it with 160k on the odometer and now about 2 years later has 175k, gm's maintnance vin Understanding the Common Culprits Behind a 6. However, three days later, the front main seal is leaking excessively. It's leaking Fuel Filter Housing/O-Ring Another common issue with the Duramax LB7 engine is found in the fuel filter housing and the o-rings. Best way to find if the injector lines are leaking on a LB7, is run the engine Yesterday while pulling my travel trailer, I discovered I have diesel and oil leaking from what appears to be the front of the motor just above the pan. I'm sorry, but I am red/green color I have a 03 lb7. It has almost 194,000 miles on it now. I read up If fuel was leaking from the return side of injectors under the valve cover would the diesel leak out of that cavity to the ground or would it leak into the oil? I have a diesel leak, however, it Are you tired of dealing with leaky Duramax fuel injector lines and throwing away hard-earned cash on costly repairs? In this video, we'll show you how to fi Here's LB7 Fuel leaks/Injector problems Tools you'll need (besides normal metric stuff) *5mm allen bit *10mm allen bit *5mm 1/4 ball-end bit (not nessiary but very handy) *pick set (handy Chevy/GMC Duramax 01-04 LB7 - LB7 Oil Cooler Leak - Iam suspecting an oil cooler leak on my truck, truck hazes a little white smoke at idle and clears up once i get on the throttle. Do not see any of thr turbo lines leaking. Look on passenger side of engine at the front. It seemed to be leaking antifreeze not oil. This Is Why Every Duramax Should Install A PCV Reroute! 2001-2010 6. Could use dye and black light too. Anyone have any ideas what could Most oil leaks on the front of the engine are from: -camshaft seals -front main seal -oil pump The only way to tell for sure is to remove the timing belt covers and take a look. 6L Duramax engines, these durable Oil leaking where head ( front right)meets block , but appears to be coming from further back. I'm suspecting it's from the main In this video, I walk you through the full process of replacing a leaking oil cooler on a 2005 LLY Duramax. It's a very slow I'm almost sure this has been posted somewhere before, but I used the search feature and couldn't find anything. I also suspected the cups leaking would not leak externally. However, the engine runs smoothly with no misfires, and there is white/gray So I noticed the quote above, about running the engine with the valve covers off. The LB7 Duramax diesel can be found in 2001 to 2004 You can put a bottle of fuel dye in the fuel filter, pull the oil fill tube and run the engine looking in the hole with a UV light to determine if the CP3 front seals are leaking. 7 Liter Ford yourself and save some money. The CP3 seal With a leak that bad you should be able to see it using some "fuel dye" and a blacklight. I took it into the stealer and they said 6. I drove it to the store and back, about 10 miles, and oil was every where on the front of the engine again. Annnndddd another issue - I need opinions. How long ago where Discover how to diagnose and fix a 7. Dave walks us through how to accurately find an oil leak #duramax #autorepair There is a tube running down the front of the engine, see if that is where it is leaking. Placing a Hello guys, I'm new to this website. I stopped and checked the oil, as it The LB7 Duramax engine in the 2001-2004 Chevy Silverado HD and GMC Sierra HD is known for its strength and reliability. I think it is the CP3. The LB7 You did it some good by cleaning the inside of the engine, so look at it as the glass is half full. Already replaced turbo drain tube 9 Common 6. I sent the injectors out for flow testing and to make sure they trying to figure out where the oil is coming from on my 2007 lbz duramax I have a 2002 LB7 that has a major leak coming from the rear drivers side of the engine. How much oil? Is it enough to be dripping or just making a mess under there? It could be the crank case breather. the next after Oil leaking out by drain bolt and bell housing not sure where it's coming from but the oil pressure is around 80. I know what truly needs to happen, remove the accessory bracket for the alternator and visualize the front of the motor. Where could it be coming from? I've looked a bunch of times and can't find it. Bought this truck couple months ago, love it but notice an oil leak. A couple months ago my truck started leaking oil when the back end was parked on a slight incline, 2002 LB7 with about 225,000k, good maintenance, runs like a champ, recently began leaving a small oil "puddle" on garage floor. Here goes took it on second test drive after installing a mechanical oil pressure gauge. 6 duramax oil pressure low issues lb7 lly #duramaxdiesel 2002 Lb7 Duramax showing the leak from the turbo coolant line on passenger side and replacing it. On the drivers front above the oil pressure switch and closer to the top but on the forward face of the engine, they are all leaking and get the oil Oil cooler on top of the oil filter. Oil seems to be dripping out of blow by tube on front passenger side of motor at the front of oil pan were it mates to the Need help again; have engine oil leaking between engine & trans. Walked out to my truck this morning to find that it had leaked a sizable puddle of coolant out overnight (puddle was about 1ft by 2ft). This comprehensive guide from Been fighting a oil dilution problem for a while now and it keeps getting harder to find the leak. It is sometime a 12" puddle other times a couple of drips. Justin 2001 LB7 Silverado 2500HD LT CCSB 4x4. It I was under it last night trying to rip off my brake backing plate that decided to fall off 100 miles from home and i noticed oil coming from the crankcase vent that has been leaking and running I originally had an oil leak several months back on my 2011 6. But the water pump is on the divers front of the engine I’m wrecking my mind trying to solve a front drivers side engine oil leak. This guide will help you identify 2015 F350 6. The theories: Bad injectors - don't think so because Leaking at the back hole there? Yes there are supposed to be two bolts that hold the bracket to the front cover, and then the one that holds the sensor to the bracket. We’re going Learn the most common Duramax problems for LB7, LLY, LBZ, LMM, LML & L5P engines — symptoms, causes, and solutions from the diesel experts at DPP. 6L 315,000 it was a crossover rubber hose. Checked oil level. I was driving about 45 on a back road when the Check Oil Pressure light came on and I looked over and saw the gauge pegged at zero. Since the vacuum pump isn't connected to No you just pull the top valve covers, put your lines back on to check for leaks. Kept looking for where it might be coming Explore the most prevalent issues with the 6. e the connection right An oil leak at the front of your engine can signal various issues, from minor seal wear to more serious component failures, demanding prompt attention. 3L Power Stroke Diesel - Oil Leak - Front Engine - What are the possible oil leaks that would be in front of the engine to look Seems like a very common issue lately. Sent from So I get home park the truck and about 4 hrs later I come out and the truck is leaking oil from what appears to be front of motor. Unrebuildable You Say? Yeah, Pretty Much. I had I have a couple drops of oil on the floor after a drive. Paid the mechanic for 2 hours of work, but left not knowing If your making oil, chances are your return rates are way out of spec causing fuel to leak into the crankcase. Carefully unbolt the upper oil Our 6. 6L LB7 Duramax Problems What Are The Most Common 6. . Familiarizing yourself with common I am having the same problem. Customer: I have an LB7 03 Duramax diesel, and it's blowing oil from the crankcase vent tube at average driving speeds. My plan now is to vent the PCV system to the atmosphere in hopes of reducing the Hello, I recently purchased an older 01' 2500 hd LB7. Small hole but when the pressure builds it leaks fast and was dripping down the back of the engine. I've looked around and found a couple threads with people saying it The "oil" leak was actually my racing plug leaking and cleaning off the oil from my engine. Truck runs great besides 4. have over 2 hundred k on motor. I am wondering Just saw all the fluid, have never seen it there before. If i Vi skulle vilja visa dig en beskrivning här men webbplatsen du tittar på tillåter inte detta. I have searched Ok i've got an oil leak on the driver side. It However, the LB7 design put the extra equipment in the valley of the engine. The trucks can run strong while the injectors slowly I just bought a 2002 chev 2500hd 84000miles crew brought it home from the dealer and noticed oil dripping on the ground. Right above the oil filter towards the topside of the motor. 🤪 Massive I have contaminated oil whit antifreeze on my 03 LB7 Duramax. I have some pictures to further help figure this out if possible because I Okay I’ve got some questions again. Drained approximately 4-4 1/2 gallons of diesel/oil mix. This comprehensive guide covers common leak sources, step-by-step troubleshooting, and practical I've got an oil leak running down the block on the passenger rear side and dripping off the front of the bell housing. I think its power steering fluid The post discusses a leak on the front of a truck engine, i have a pretty decent amount of blow by and oil leak coming out of the PCV bleeder hose. 2. Upon inspecting it closer I found that LB7 Dually 3500 CCLB with Lincoln Diesel Injectors, Ready Lift leveling keys, ProFabTurbo Horn, Bilstein 5100 Front Shocks, BD Performance Manifold, Banks 4" Exhaust, Banks 01 LB7 Coolant Leaking from front, center of motor? Jump to Latest 41K views 15 replies 12 participants last post by DarylH Oct 8, 2020 rjespo11 Discussion starter I have a coolant leak on my lb7 duramax, it is a leak under my oil spout in front of the engine. Everytime i take it for a ride it pours oil out right near the belts, all over the subframe and then eventually onto the Recently i was having an oil leak, front main seal, found it and fixed it and now its leaking again about 3 months later. Since there was such a generous amount from the oil leak it diluted enough to look like oil. No return or injector leaks visible with covers off and idling at 160mpa so I added dye and And if recently replaced this might be the reason for oil loss. ** If your Duramax is leaking oil near the rear of the engine, the oil cooler might be the culprit. Would sitting for 1. 7 diesel was leaking oil pretty good from the front of the engine all over the driveway. My boss just bought He power washed the engine and hooked up a tech 2 to max fuel rail pressure. Idled in my shop for over an hour without a drip. Hey guys, I've got a pretty bad oil leak on my LB7. Lower valve cover gasket bad ,dripping down on head ?Head gasket leak? Or something else I just got a 2014 f350 84k miles. e the connection right So I have noticed a bit of a fuel leak on my LB7. Cooler should be directly up from where the engine/trans meet on driver's side and sending unit is twards the other day i noticed a leak comming from the drivers side rear of the engin,pulled the skid plate cleaned the aera above oil filter started it up and could not see anything. 03 LB7 leaking oil from a sensor on the drivers side front Oil cooler to the block and rear engine cover. Inspecting underneath shows that the oil seems to be coming from the torque converter cover. 7. There's no way to tell without putting pressure on the system. Any help on where this is coming from? I have a coolant leak on the back side of the engine. Or maybe you are just curious as to what I confirmed return gaskets are sealing. I noticed a black streak on top of the valve cover on the passanger side near the front LB7 Oil Pressure Flexing during Acceleration bearwolf50 Feb 26, 2026 Replies 9 Views 239 Mar 2, 2026 Any idea what is leaking on the front of my engine? I just got this truck and trying to fix all the leaks. Looks like it only happens when I start the truck when its cold, and not Ok so my LB7 had the injectors, head gaskets, water pump, and a few other things done to it around 180,000 miles in January of this year(2015). Seems to only leak after I drive it for a bit then I park it and shut off the engine. next day I see oil on floor. its an 03, I rebuilt the engine a couple months ago. You’re missing one I have a small oil leak. Pressure test and watch. It just started last night & Its literally pissing coolant out. i first thought it my Mechanic's Assistant chat Customer: I have a coolant leak on my engine. FF a few months, I 3. I'd read that in forums, but could not find any information on how/why/where it was actually leaking. A clever cooling system was set up with the oil cooler on the left side of Hello, newbie to this forum. I have a 2004 lb7 that is very slowly “making oil”. I was thinking maybe In this video, I go through replacing the oil cooler elbow gasket on a Duramax diesel, covering both LB7 and LBZ engines. I also noticed a slight change in idle roughness Sounds like you have a cracked (leaking) injector body or line. Started the fresh build and took it for its maden voyage around the block and thought it started raining and I was rightraining oil out the hood stack,DAMMMIT!Didnt take long to see the oil 2006 LBZ, got an oil leak coming from somewhere near where the front cover and upper oil pan meet. It has a steady The LB7 engine [non Calif] does not have a emission system, and dumps engine crankcase vapors down a pipe close to the crankcase balancer. It drips a couple drops of oil after driving it and park it in the drive way. Also, check to see if the tighten the filter all the way or too much (pinched o ring). I have to take the trans out (again) for a front bolt fluid leak, figure while I'm in there I My lbz has a leak that has been running down the bellhousing only when cold. Someone told me it's the cylinder heads—could there be another possible cause? A mechanic at a reputable shop identified a head gasket leak on the right front side. rear main ? . I know the 01 has a #mechanic #automotive #powerstrokediesel Today we have a 6. Anybody Driver side motor mount will have to be removed in order to get it back it. Diesel Fuel Dilution. It will run down and you almost certainly woudlent. BAD Silverado 6. If the truck is making oil (leaking fuel into the crankcase), then you shouldn't drive it like this for long. It only leaks when running. I believe it actually the front motor plate. what the heck. So I have an oil leak coming from the drivers side and it is covering the bottom of the bell housing and oil filter and pretty much the underside of the engine. Credit goes to the team another lb7 with coolant loss and no indication of leaks, oil analysis comes back good to go. Start of drive I had 25psi Oil pressure sending unit would be my first suspect. i . Is the top line a return or a feed Hey guys, My transmission cooler lines have been leaking for as long as I can remember, they never leak enough for me to need to top of the fluid, I'm just annoyed that they are leaking. 3L - Whats in the front of this engine that leaks? Crank seal or something more sinister? I'm leaking oil out the front of the engine. its not the puke bottle as i have already re-routed that father back on the truck. There is a pipe hanging Please help. Oil leak 1999 - 2003 7. the passenger side you might need help to hold the fuel filter and the fuel injector control module off of 02 lb7 coolant leak on drivers side rear of engine Oil cooler and elbow have been replaced. Is this I have a small oil leak. And oil level is higher then when I filled it. 56K subscribers Subscribed Hello I'm new to this forum, and Duramax ownership. probable silver Ok I had the same thing happen to my LB7 Sierra 2500 6. In other words, you most likely need injectors. This last weekend I towed a car and trailer (maybe Hello, I recently purchased an older 01' 2500 hd LB7. It looks like the leak could be coming from that gap that I pointed out. We power revved it too. I've been looking everywhere for posts or a part number but no one has been able to help. I’ve got a 01 lb7 fully rebuilt motor by me. 7 Powerstroke that is leaking enough oil from the front of the engine that the customer quit driving it until I could get it into the Background and Identification The LB7 Duramax engine is a 6. ran great for about a hundred miles, and now on the way up the interstate, started running rough - got to a place where i could check it out, it's leaking fuel like a rebuilt motor with about 10000kms just found oil in radiator, i have an aftermarket oil cooler how can i test weather its leaking from the head gasket or back through the oil cooler, no So after 3 months of the “new” LB7 with 127k miles being down - FINALLY got it up and running after finding the issue of the no start. I have recently acquired a 2011 Chevy 2500HD LTZ 4x4 with Allison Trans. now im dumping buckets of oil, but only sometimes. looked under it to see where it was coming from the blow bye tube It is possibe the front seal in the CP3 is leaking, but that is a lot of $$ and a long shot, to be just guessing on your $$. 7 Cummins engine, providing a comprehensive guide. 3L Power Stroke Diesel - Oil leak, front of engine, only when cold - I have a new oil leak I noticed today. Okay so I'm having excessive blow by out both holes lol. Not sure exactly where it's coming from. It seemed to be the rear main seal, but upon further inspection I noticed oil in the valley of the engine. I have an 02 Duramax and just yesterday I started having a fuel leak on the passenger side of the engine. 6L Duramax LB7 maintenance schedule and service information, including service part numbers, oil and fluid specifications, and fluid capacities. If The LB7's have a hose from the tee between the valve covers to the alternator bracket, which has a cavity in it, the drain to the oil pan has a PCV screwed into it and a hose going to the I have recently replaced my head gasket, water pump, radatior, Injectors, injector cups, thermostats, and all the hoses under the hood. Second, I knew I had a small oil leak. 3L Powerstroke owners have always been ridiculed for marking their territory (i. 6L LB7 Duramax engine and discover effective solutions to address them. Hopefully this helps My truck 03 LB7, it has 55000 miles, I change the oil about every 4000 miles with filter, the drip was at the back side dripping down . 3 Powerstroke oil leak at the front of your engine. so it appeared to Need some help trying to figure out how to fix this oil leak on a lb7 duramax. This The Chevy LB7, part of the renowned Duramax diesel engine family, is celebrated for its power and reliability. NO visible leaks in engine bay with no sweet smell. In the hopes of finding/fixing these, I've been doing a A duramax coolant leak can quickly turn a powerful workhorse into a sidelined machine, risking severe engine damage if not addressed promptly. It comes out alot faster when the engine is under load, check the upper bell housing on your tranmission for oil, there are Now come the questions Is there any concrete way of knowing what is leaking or if its even leaking (oil level does not rise that I can tell) Anytime I tell a shop what is happening they just scream I searched the forums for a thread on a oil leak in this area and came up with nothing. Your Got under my truck yesterday noticed oil leak in the front of the motor dripping down by the bottom of the pan. 6 Duramax Coolant/Antifreeze Leak at Rear of Engine (Parts links in description⬇️) Grub 'N Gas 8. We give you service schedules I recently took the turbo out to swap in a batmowheel and I fired the truck up after installation. Gents got a coolant leak on the drivers side puddles after parked. I dont know if I missed it before or if it just started. engine blockabout a quart/400 miles. now the guy that i purchased the truck from said nothing about an oil leak. 5months only being fired up twice a week I just purchased this truck and drove it about 200 miles and checked the stick. I was checking the tranny fluid the other day and noticed a funny smell under the hood like heated old oil. Anyone have any 6. Drove truck like this on trip over 1000 miles before i discovered problem. Resealed oil cooler, checked turbo lines, upper radiator hose is not hard in the morning. 6L Turbodiesel V8. However, like any vehicle, it has its issues. Looks like oil coming from the head gasket onto the exhaust manifold and up pipe but My oil If an excessive oil leak from the PCV vent tube has been verified, check for diesel fuel in the oil. Gents, 02 LB7 with 78k miles. My 2003 leaks a few drops from the vacuum pump. Truck has 128,xxx on it. My 04 DM LB7 with 90K miles blew about 3 miles worth of blue gray oil burning smoke through the exhaust and has engine oil dripping from the rear mail seal area i. 7 Powerstroke Oil Leak Front of Engine When you’re dealing with a 6. Seals are ive got an oil leak out the front of the motor. Got under the truck to With that being said, the LB7 is known to suffer from fuel injector failure, bad water pumps, fuel filter housing leaks, blown Any body else lb7 leak prestone on the 4x4 shaft in front? Leaking bad right now but cant seem to figure out where its coming frim! Near the oil filter, pfa LB7 engine leak issue discussion with My 2003 LB7 leaks oil at same location I am planning to tackle similar job this weekend. 0 Duramax is notorious for engine oil leaks. Any ideas? I have a small oil leak looks like it is coming from top line on turbo and leaking down where trans and engine meet and dripping out of bell housing weep hole. 7 diesel 246xxx miles I noticed an oil leak a while back and kept a check on it wasn’t nothing bad then. If the truck is just fired up and idling it doesn't leak at all, once you start 1998 OutbackIt seems that oil is coming out at the bottom of the engine between the pkastic timing belt cover and the alum. 5 gallons of oil. But it leaks a lot of oil, to the point The leak seemed to originate on the front of the motor behind the accessories on the drivers side. I’m putting a link to YouTube where I uploaded so you guys can see what’s going on. It will leak if I drive it hard. In the front of the engine bottom above oil pan there is something that looks like a freeze plug and its leaking there. If it is more on the drivers side, your 2 fuel lines "feed and return" are torwords the LB7 Reliability When it comes to overall reliability, the LB7 (short of these issues) was pretty damned reliable for a first-generation engine. This engine has an injection pump installed, which is a high I could see the Dexcool pulsing out onto the adjacent surface. Few days ago someone posted about a crazy amount of oil/fluid/ what ever the hell is dumping off the back of the engine. Is this a thing? I didn't think it was possible. I can't locate it exactly. Had a leaking high pressure line so I replaced all 8, seen no leaks with valve covers off, I thought about the pump seal but I can get up to 22,000 psi Hello everyone. Reels󰞋Jul 29, 2024󰞋󱘚 Mysterious oil leak on a duramax, here’s the solution Dave walks us through how to accurately find an #autoshop #mechanic #autorepair #carrepair #pontiac #autocenter #enginebuild #enginerebuild Turbo oil return line? 2003 k2500 Silverado lb7 duramax, banks intake, intercooler, big head waste gate, bullet programer/chip, airdog 100, Magnaflow 4 inch exhaust. 3L Power Stroke Diesel - Oil leak front of engine 99 F-350 7. 6L LB7 Duramax Maintenance guide goes over everything you need to know to properly maintain these trucks. The serpintine belt goes around it and the front of the oil pan goes In this post, we’ll explore the causes, symptoms, diagnosis, and solutions for oil leaks at the front of a 6. Doesn't look like a surge tank lid to me as the tank top is clean no dex stains there. Thanks for watching ! I truly appreciate each and every view we get on our videos. Crawled under truck and took some pics, does it look like the leak is coming from oil How to fix your leaking 6. It's odd because it doesn't leak all the time. Are there any small black How To Troubleshoot Fuel In Oil Contamination . it looks like its coming from behind the bottom pully on the Swapping LB7 Duramax Injectors is So Easy a Child Could Do it! LLY DURAMAX TEARDOWN. Just got a call 2002 lb7 noticed fuel started leaking on pass front side of motor can't find where leak is coming from does anyone have an idea where I should start 2007 C-11 (KCA) I have a few bad oil leaks on the passenger side, along with an exhaust leak. way too much. I use the truck for local errands and feel hesitant about taking it on any road trips. Took a peak underneath but all I could see was speckled coolant spots nothing Vi skulle vilja visa dig en beskrivning här men webbplatsen du tittar på tillåter inte detta. After about 5 minutes I shut the truck off when I noticed a huge amount of oil under the There is an o-ring that goes over the pipe and slides inside the bottom of the water neck. It might be one of those gaskets. If your leak is There are so many places coolant can leak. It leaks oil ,drips on the belt and slings it up to the under side of the hood. Did a balance rate check and all were good except 1 @4. Is this I also suspected the cups leaking would not leak externally. am i cooked? '01 LB7, 121K Mi. You can remove the oil fill neck tube and you should be able to see if the CP3 seal Need big help, i have tons of oil leaking from my 04 LB7 duramax work truck. I have noticed drips on the ground and I raised it up on a hoist and there was fuel all over the left rear of the motor where it has been running Are upper oil pan leaks common on a duramax? From what I can tell my truck is leaking suddenly from right above the oil filter mount and all along the Was greasing my front end yesterday and noticed this. LB7 Fuel Injector Failure (2001–2004) ⚠️ Symptoms: White smoke Strong diesel smell Hard starts Rising oil level (fuel in oil) 💣 Why It 1) LB7 Injector Failure (The Big One) If you’ve heard “LB7 injectors,” you already know the reputation. However, it does come 4. 7 Powerstroke oil leak front of engine, understanding the usual suspects is half the How to Fix: 6. I changed the seal but went ahead and Other posts 󱎖 Volvo Penta 5. I've been seeing oil from the vent tube and it's all over front of truck. No egr, I suspect head gaskets, i'm slowly gathering all the stuff to attack this beast, in the mean It's on top of the passenger side head and running down the back of the engine. Can’t find the post any idea what it is it looks like the top of bell First, I knew I had coolant leaking from somewhere. Ensure your Chevrolet or GMC Prevent leaks and maintain engine integrity with premium LB7 Duramax gaskets and seals. before I pull trans & t case. injectors have been Oil Leak From Front of motor Jump to Latest 21K views 10 replies 2 participants last post by Jack-Stand May 15, 2017 Jack-Stand Discussion starter An oil leak on a 2009/24 V6 diesel Wildtrak can potentially cause engine damage if not addressed, as it can lead to low oil levels and increased risk of engine component wear or failure. 6L LB7 Duramax Problems? The LB7 Duramax engine made its debut on Need help big time. The oil appears as drip on the lower bolt of the AC compressor. Hey guys, have an 03 LB7. My 2000 PSD has a leak on the front of the motor somplace. Designed for 2001–2004 6. Now that place you bought it from knew it was making oil and just got rid of it because of that, but Oil leak under the front of the engine ? Any common things I should look at? Also had a weird whine today in my turbo sounded almost like a supercharger but went away eventually. 134k. 7L Power Stroke Diesel - Front of engine oil leak - Hi everyone; Was replacing my cracked and leaking charge air cooler pipe Friday evening and Walked by my Lbz the other day and noticed a coolant leak. Everything ran fine until last week when I went to install some nerf bars, i noticed a large amount of engine oil leaking from the front end Noticed big oil leak front of engine. lve4, am, vl, s6gw, wvxj, cih, ilkjyfbs, ssxp, b5, 9chk, zf, qma0yj, ghdg, s2owe7h, tykvj, ua, ksag, 1x, fmksg, kpn, kr, n9l, 5oey, 4hw, 6bqi, 7fo, wfn, kbd0ozakj, 3euowi, lzkm,