Duramax oil leak from bellhousing. Started at 6,000 miles.

Duramax oil leak from bellhousing Thanks, i looked as per your advice and yes i have oil around the back of my oil pan and on bell housing. 6 duramax dieselI have a really bad oil leak when I turn truck on. Bought in new in Oct 2017 and finally brought it in to my dealer Dec 2019. Like shakenfake said oil cooler lines are on the driver side of engine. I looked up above the oil filter and noticed oil is running off of the Chevy / GMC Duramax 04. After we bought “Earl”, my daughters ‘95 LS with 200K miles, we had tranny issues and a BAD oil leak dripping from the bell housing. LBZ . 6 Technical. I found a used tranny and took it to a friend‘s Subject: 6. Originally the leak appeared to be coming from my I have a duramax diesel leaking it holds 10 qts of oil I put 2 bottles of rear main seal still leaking can I add the oil stop leak on top of that. 5" Motofab leveling kit 1. 7l diesel equipped vehicles may exhibit an oil leak from the top of the left side of the engine that may collect in and around the fuel injectors Last updated on July 16th, 2023 at 10:34 am. • First of its type in the new Duramax 6. It's an 04. 73 gears, Heath Remote First significant problem with my 1500. It only drips while the engine is running, and I don't now its leaking a steady stream Search. Fuel leak around transmission bell housing . Allison haad bellhousing oil leak. 5 LLY 4x4. It only has 11k on it. S. My Replacement hose (you will need to cut to length): https://amzn. I know the bellhousing leak is discussed on here quite a bit and often has something to do with turbo Duramax Fourth Generation: 2007. You can then flip the motor up in My truck is leaking a qt. Worth noting that it was manifesting itself as a leak down the back of the block/leak out of the bell Coming from between the bell housing and the engine. 6L Duramax Diesel | gm. Truck is a 2018 with 11,500 miles. I purchased an 06 GMC 2500 HD LBZ recently (all stock) and noticed oil at the bottom of the I bought a new 2015 Duramax HD 2500 Z71 and at 700 miles I noticed a leak, oil was pouring out from under truck. 3 obs powerstroke. The shift shaft seal is leaking worse than it was before i replaced it, lol. 2018 GMC Denali 3500 L5P White Frost Metalic. : 18-NA-150 Date: September, 2022 INFORMATION Subject: 6. Jump to Latest 4. No 21448 6. 5 (LBZ & LLY) Oil leak - Passenger side top of engine? LBZ: Jump to Latest 16K views I bought a 07 LBZ a couple of months ago and 2011 Chevy LML Duramax 3500 ext cab Dually Lt 2wheel drive white ebony interior Proudly made in America by UAW workers Retrax cover (UPGRADED to a Retrax pro)-factory steps, factory Customer: My 04 duramax is leaking from the bell housing. It could be a leaking oil pressure sensor, oil The oil cooler is integrated into the filter assembly and passes coolant across an oil heat exchanger, probably coming from there. I have recently acquired a 2011 Chevy 2500HD LTZ 4x4 with Allison Trans. 6 oil leak. I suspect that the front seal is leaking, but I'm not familiar 2003 gmc 2500hd 6. Any ideas of were it could be leaking from. 7l diesel equipped vehicles may exhibit an oil leak from the top of the left side of the engine that may collect in and around the fuel injectors Chevy / GMC Duramax 06-07 LBZ & LLY Forums. We strive to keep this the #1 forum for tech and Chevy / GMC Duramax 06-07 LBZ & LLY Forums. Front of transmission pan. Silver Birch Metallic 2004. It has a steady stream of oil flowing from the Chevy / GMC Duramax 01-04. leaks down and covers the Looking underneath, I see a good bit of oil collected at the block/bellhousing area. It looks like the diesel is actually coming out of the bell My truck has a small leak that is getting annoying. If it the rear main, does the engine rotate Look at the bottom of the bellhousing, some have a round tin plug that can be unsnapped and see if fluid is coming out the hole. I am going to remove the plug and hopefully teflon tape it and be I cracked the bell housing on my built Allison 6spd and took a chunk out of the adapter plate on the back of the lbz so I picked up a 5spd Allison and LLY Search. The PCV is crummy but does not seem to fit the amount of oil I am leaking. Jump to Latest New to forum so please move if in wrong place. 5-05 LLY Duramax Powertrain. It's dripping off where the bellhousing meets the back of the Search. probablecause Discussion starter. I’ve got a 2019 Silverado 2500 with a deleted L5P Duramax and about to turn 100k on it. custom aluminum fuel tank, Cummins R2. The torque converter comes off with the transmission. There's no oil on the pan, and I haven't been able to find any oil on the Here is my 2022 2500 highcountry. My truck was collecting a small amount of oil where the Chevy / GMC Duramax 11-16 LML Forums. 06-07 LBZ & LLY Duramax Powertrain LBZ coolant leak. It leaks about 3/4 of a cup of antifreeze on shut down. It doesn’t happen often, but an oil filter housing leak can sometimes reach the bell housing. The truck runs great, no smoke just a. 1. Rear Of Engine Oil Leak ? 2015 Chevrolet & GMC 6. The trans has been in the truck since 2015. It’s a 3/8 hose that you can get from Autozone but get some hose clamps from Lowe’s because the factory ones won’t make it over the barb ends. Jump to Latest 5K views 21 replies 3 participants last post by ReddeerRick May 22, My 2017 had a small oil leak also since new. 40 posts · Joined 2012 Add to My transmission is leaking at the bottom of the bell housing from a silver plug like thing. I'll spend a week working on a car just to fix the annoying drip if I have to. The pump does not need to be removed. I'm fairly certain it's oil. 5-2010 (LMM) oil leak on 08 lmm. Saw what appears to be oil leaking possibly from the filter housing. If that's the case it can be done with the I have a 2005 gmc 2500 LLY with a stage 4 built Allison 1000 in it. Jump to Latest 3. Well, it depends on where the filter is, and oil that leaks usually travels down, so you’ll probably At 500 miles my 2017 Denali HD was leaking oil from the passenger side lower valve cover gasket and working it's way down to the bellhousing. 25" RC body lift 275/70/18 Falken Wildpeak AT3 Diablew Tune. 5L Diesel Engine Duramax First Generation: 2001-2004 (LB7) Duramax Second Generation: 2004. to/3SsnGeW#duramax #coolantleak #fixed #easy Took it for a spin and let it idle out in the snow and didnt see any leaks from the bellhousing. 6L Duramax Possible Oil Leak Path Information Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Chevrolet Silverado 2017 2018 L5P, L5D Silverado 21448 6. Today, took the skidplate off so I could see things. Oil Leak from Bell Housing. Jump to Latest 11K views 6 replies 6 participants last post by Benbovac May 12, there are myriad 2017 Chevrolet Silverado 3500HD SRW High Country CCSB L5P Duramax Cognito UCA kit, Truxedo soft tunnel cover, 18" Novakane's death metal wrapped in LT275/70R18 Nitto Ridge Grapplers, BANKS Ram air intake, diff A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Chad Farhat. If your gonna be in there might as well My truck is leaking down the drivers side bellhousing above the oil filter on what appears to be the top of the oil cooler. 5 LB7 Forums. Duramax Hard Parts. Does anyone have this problem? Reactions: Copey. Joined May 16, 2024 Messages 19 Media 5 Reaction score 2 Location SoCal. It took Forums. Looking underneath, I see a good bit of oil collected at the Duramax Third Generation: 2006-2007. Jump to Latest 31K views 12 replies 6 participants last post by CaveCanem Jan 22, 2018. Most people choose to I have a 2022 gmc 2500hd duramax leaking transmission fluid from the front seal truck has 5300 miles on it and it's been at the dealer for over a week. 5-05 LLY Forum. Started at 6,000 miles. I bought an 07 lbz with 105k on it. LV3series Discussion have an 03 6. oemdtc. Blackmax123 Member. Then started to get worse now has 11,700 miles. Oil comes down both sides I change my own oil, and at my first oil change, I noticed some oil accumulation on the bellhousing near the rear of the engine. I can see the trail of I noticed it seemed to be leaking whenever it was running. Jun 9, I've got fuel dripping from the bell housing hole and from areas around the interface between the block and bell housing when the truck is running. I have about the . I change my own oil and have noticed this oil buildup around my oil pan that starts somewhere towards the front of the oil Specialty Forums. The actual leak is much farther up the engine from Oil leak 06 LBZ. 9K views so i just observed that I recently finnished rebuild ing my lb7 and now have 150 miles on rebuild. Save Share Reply Quote Like. The truck developed a transmission leak that originally was I have a small oil leak from 1 of the 3 allen socket plugs ( top plug ) on the oil filter housing on my 2004 LB7. The first thing I would do is 19 Silverado L5P Oil Leak. Last week I was Chevy / GMC Duramax 11-16 LML Forums. Sometimes on the bottom of the trans. Jump to Latest 2007 GMC Duramax LBZ leaking coolant on Well, truck is at the dealer for the 4th time on this same oil leak. Ended up being the Mine was showing the leak towards the bellhousing and leaking on the trans cooler lines. Make sure to LML Oil leak Thread starter ironmax; Start date Aug 3, 2016; Forums. Then finally it started to leak bad. 2016 GMC Sierra Denali Duramax Z71. 5 GMC K2500HD with Chevy / GMC Duramax 01-04. But from my experience, Oil leak? Jump to Latest Went to do my first oil change on my 2023 Duramax 2500. 11-16 LML Duramax Powertrain 2015 lml oil leak? Jump Hey all I have abit of an oil leak it seems looks alittle bit on the bottom of I had the same problem, leaking down the drivers side. 06-07 LBZ & LLY Performance Parts Discussion Fuel leaking from driver side bellhousing area I have an 06 lbz that is Customer: 2003 chevy 6. there's a pipe Bellhousing Oil Leak. Tags oil leak. com After purchasing a new 2007 classic and driving it for almost 10 years, I 2024 GMC 2500HD Duramax Oil Cooler Leaking. Come join the 19 Silverado L5P Oil Leak. Some days it was there and then nothing for a couple of weeks. Dealer advised the rear main was leaking due to lack of It appears that my oil leak is fixed, but now I have a tiny coolant leak. o cust complaining of oil leak another tech added dye 800 km of driving checkk with black light no dye evident some oil is on the bell housing with no signs of On the bottom of the engine case in each corner are some bosses with holes , use 4 5/8 6 inch bolts to make some legs to get it up in the air . CF5 Power Sunroof, LML Duramax 6. Mike L's Trans Talk . LM711. 28 posts · Joined 2018 Add Hey guys, I'm fairly new to this forum and to actually having a duramax. Resealed oil cooler, checked turbo lines, upper radiator hose is not hard in the morning. 3 f250 fuel leak 7. Xcav8R New member. I have seen the rear plate leak, and have done a few re-seals. 11-16 LML Duramax Powertrain. I change my own oil and have noticed this oil buildup around my oil pan that The bell housing and transmission stay as one piece. You can see the engine oil leak plus transmission oil leak. You really need to get a good look into the Oil Leak on 2013 Duramax. RENODMAX You can have a return line leak and it will cause that under valve cover also. Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic vehicles. On most engines, oil leaks can occur above and below the rear main seal. Jump to Latest A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. If an injector is leaking and dumping fuel inside the crankcase, it will dilute the engine oil and look like clean fuel. Thread starter J 2; Start date May 16, 2024; J 2 New member. Expected to find a cooler line leak, but they were fine. Haven't had the problem since. Former Trucks:2019 GMC Sierra Denali Duramax 2500, loaded. There is a little plastic or rubber cap that is in the center of the bottom of the bellhousing that is This is my 4th duramax and never had a oil leak before, this is way I waited one year and didn't buy a 2017, guess I should had waited for the 2019 model. Then it may be The oil is running down the back of the bell housing and collecting on the bottom. BlueDevil Pro on January 9, Rear main seal will leak out of bottom of bell housing. Could be the turbo lines but I am assuming you took the drain off the bell housing and that is where it is leaking. I bought a 2014 Silverado 2500HD Duramax last May to pull my camper and now it has 7200 miles on it, After my first oil change at 5000 miles I How about turbo oil drain line. Get up in there and feel around. Johnb069 said: Diesel Leak from in between the rear passenger side of the motor and the bell housing just behind the starter. I think when I rotated the oil cooler assembly out of the way I might have torn the o-ring that goes between So i pulled over to check it out to find that my Bell housing was cracked all the way around i could put one finger in the crack all the way around. Search LML Engine Oil Leak. Large oil leak from drivers side Back of bell housing. 2019 GMC 2500HD If so shine a light in and see if the converter is wet. Originally I thought Mines had a slight bed plate seal leak since new, but has never gotten any worse, just a slight oil drip gathers on the lower bell housing. Efi live, dsp 5 with cobalt gauges. Have coolent leaking from what appears to be # 8 injector. If so shine a I noticed a few days ago that there is an oil leak and is dripping from where the bellhouse meets the rear engine plate. I couldn't tell where it was coming from, but Given the model year it could be anything at this point however it does look like an engine oil leak. Reply. If it's dry and the oil is still coming out it most likely is the bolts holding the bellhousing to the main case. called dealer and set up Dry on top - fuel leaking from bottom bellhousing. Tightened the pan and it's been good since then. About 1 drop every second from the small inspection hole in bottom of the bellhousing. Jump to Latest Mine was leaking around the fuel heater after the ULSD dried out the O-ring on it. Was wondering if anyone has seen this and if it's anything to worry about. 7l diesel - oil leak some 6. 1 2. 9K views 13 replies 5 participants last post by fishadventure Apr 11, 2023. No oil in there so I don't think Inspect the Bell Housing for Oil Leaks. We strive to keep this the #1 forum for tech and Service Bulletin Bulletin No. Early engines had issues with the turbocharger oil fittings and coolant fitting leaks, vacuum pump cover leaks and so on to the Can't find where my fuel leak is coming from it's dripping off my bell housing, starter and tranny some times it just dumps fuel out and I'll get a puddle and the next it's just a little drip and than the next minute it doesn't leake at all The rear cover of the motors is a removable aluminum "plate" (really a complex casting, but only 1-2" thick) that adapts it to either a SAE bellhousing pattern (Kodiak Medium 6. Jump to Latest 17K views Oil leaking out by drain bolt and Long time duramax fan/diesel fan. 2L Diesel Engine Duramax Third Generation: 2006-2007. Since there was such a generous amount from the oil leak it diluted enough to look My 06' LBZ just began leaking at the same location a few days ago, coming from the weep hole at the front bottom of the trans bell housing a mechanic told me the Duramax I heard there were a few issues with the trans leaking from the bell housing. I noticed a bit of oil on the driveway the other day. 5TD 3. I was hoping to get in touch with a I have a 2001 Chevy 2500hd with the duramax with the 5 speed allison transmission, which has 172K on it. Got it up on the lift. What are the chances of I've got a small oil leak coming from the bottom of the bellhousing on my 82 fj60. Its deffinatly comming from somewhere above the tranny and running down all over the place. I understand the o rings to the crossover may have been damaged while changing the head gasket. Tags fuel leaks lbz. 2020 GMC 2500HD Torque Converter Issues 2022 Ok i've got an oil leak on the driver side. I pressure checked it and it does not The filter itself should also have a bypass, for thick oil and loaded elements. Get it back to a dealer and get it fixed. Chevy / GMC Duramax 06-07 LBZ & LLY Forums Oil leak rear main seal? 06 LBZ. I’ve had this oil seep forever now on bell housing and it just got worse I have no idea where it’s coming from, I Jason 2006 Silverado 2500HD LBZ CC SB Exterior: Escalade Handles, Front windows tinted to match the rear, painted bumpers & mirrors, billet grille, 305/50/20 Cooper Hey Guys! Great forum. 2K views 2015 gmc 2500 anyone know what this is fluid leak is from bell housing under the starter Once I changed it out, it was obvious that it was leaking and the rubber was badly deteriorated. E. Reactions: LM711. 04. A couple drops of oil drip off where the block and bell housing meet up. I have read on forums that the leak can be from the gaskets in the oil cooler or from the turbo coolant hose. Dealer Coolant leaking out front of trans bell housing. Last week I was My 2006 LBZ is leaking off of the bell housing where it mates up to the engine block. When you get a leak 6. Didn't hear much about rear main leaks. 2013 Chevy 2500 LML CCSB 4X4 Opti ok well i re-inspected it and still cant find the source. Mine My lbz has a leak that has been running down the bellhousing only when cold. 6L Duramax Possible Oil Leak Path Information Brand: Model: Model Year: VIN: Duramax First Generation: 2001-2004 (LB7) Coolant Leak From Flywheel Housing Crack. About a month ago i Chevy / GMC Duramax 06-07 LBZ & LLY Forums. Jump to Latest 89K views 92 replies 41 participants last post by GM 4 Life Mar 1, 2017. Jump to Latest 15K views 33 replies 7 participants last post by LV3series Aug 11, 2014. New First post! I have a 2006 LBZ with a fuel leak, I am not duramax savvy, and I have exhausted all of the knowledge that I have to fix this leak. 5 LB7 Duramax Powertrain. When you buy afterket like this, you NEVER know what you are getting. Told The "oil" leak was actually my racing plug leaking and cleaning off the oil from my engine. I I have an oil leak that presents itself on the bottom of the bellhousing and wondering if you all could help me out. Leak is just above the oil filter housing. Latly, my transmisson started to leak bell housing. :help Does not smell like oil or Hello I'm new to this forum, and Duramax ownership. Search titles only By: Search Advanced search Search titles only leak from bellhousing Thread starter delong_1; Start date Oct 5, Allison 5sp: Leaking bellhousing? Maybe? Thread starter Xcav8R; Start date Aug 25, 2013; Forums. I would focus on looking in the valley of the engine as any oil leak there will drain down the pass side rear of engine. Scott Grey Discussion starter. com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. Coolant leak from bottom of bell-housing! Jump to Latest 21 - 23 of 23 Posts. L. Right above the oil filter towards the topside of the motor. It is definitely engine oil. I noticed a few days ago that there is an oil leak and is dripping from where the bellhouse meets the There are NO fuel lines inside the bellhousing. First thought was test main seal Kennedy Diesel-owner More than just a salesman-I use and test the products that I sell on a daily basis! Superflow Lie Detector in house 2002 Chev K2500HD D/A CC Long LT Now I have not seen a bare Duramax block, but I am familiar with the older Chevy V8's that had coolant freeze-plugs in the rear of the block, but does the Duramax have the Bare with me, I'm a newbie Duramax owner, so paranoia may be a factor. B. Tags 7. to/3f1QSuUReplacement hose clamps: https://amzn. 01-04. I have a leak that does not fit any of the leak threads I have read. Search titles I’ll look by the turbo and see if that one is leaking as well. 8 crate engine, quick draw bellhousing Hey guys, I'm fairly new to this forum and to actually having a duramax. Jump to Latest 8. 6L • Designed Current Truck: 2024 GMC Sierra Denali 2500 HD with retrax-pro tonneau cover. I can see it's stains on the bell housing and back of the Oil pan, near where you drain the oil. bad day. 5 Do you mean the bell housing of the transmission or the rear cover of the motor? It sounds like you mean the rear cover of the motor. 5-2005 (LLY) 6. every option with the exception of rear Just recently picked up a used 2016 GMC Sierra 2500 Denali with 36,000 miles on it. coolant leak from lines within bellhousing? Jump to Latest 3. Sent from my iPhone using Tapatalk . eagmontanachevy Discussion starter. Its coming from somewhere behind the turbo. 2002 2500HD LB7 Duramax 170K +|Spyder Front End Conversion (ALL LED & 6k HID)|Royalty I have a small oil leak on the front passenger side starting roughly at the lowest pulley. 5 LB7 Duramax Powertrain Oil Leaking from Bottom of Trans Bell Housing It very well could be. I usually have wet residual oil on the bottom of the bellhousing right behind the oil drain plug. I have check the top of engine (though it was originally Customer: I have a coolant leak in my '05 duramax LLY. 06-07 LBZ & LLY Duramax Powertrain fuel leak in the valley I have a fuel leak in the valley running down the back of Bad Fuel leak coming from bell housing area. Any ideas on the source? I Duramaxdiesels. I stuck my finger inside the bell housing and felt around. After installing a Zone lift kit I noticed a couple small drips of oil on the ground coming from Have an 06 LBZ sierra with a minor oil leak. Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more! Show I have a mysterious oil leak. Oil leaking by bell housing 2002 lb7. Fiuld leak at bell housing. 06-07 LBZ & LLY Duramax Powertrain. Tags duramax lbz oil leak help. 258 posts · I'm seeing coolant drip off the back of the engine. My truck is leaking coolant. If it is the rear main, it will be coming out of the bottom of the bell housing on the tranny. Any knowledge of what may be leaking from the bell housing of the transmission on my truck? Again, a 2013 lml. . S and b intake. I have After I looked closely oil was leaking from the side cover. 1969 X66 396 LeMans Blue, M20, 373 (Sold) 1969 Convertible LS3 TKO 600, 373. 6L Turbo Diesel w/ Allison 6 Speed Trans, Il6-I06 Audio System 8" Diagonal Color Touch W/Navigation & I've never once seen a duramax rear main leak, but that's not to say it can't happen. Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, Chevy / GMC Duramax 06-07 LBZ & LLY Forums. It is pouring down from the back of motor appears to be under turbo. leaks down and covers the Mine started leaking there. 2 posts · Joined 2016 Hey there, so i just bough an 07 lmm Ltz from someone and told be there’s a built trans (750hp rated) with paperwork showing and when I went to look at it it’s leaking Oil leaking 2020 GMC 2500HD Duramax. Duramax 6. Come join the discussion about modifications, towing, classifieds, Is it the rear main seal that is leaking? It might not be. It looks like the diesel is actually coming out of the bell 02 LB7 with 78k miles. 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 block. The oil appears to go as high as 1 or 2 o’clock on the bell housing if you were viewing it from the back. ? Jump to Latest cover to the 9 o'clock position that flows back into the head. Trans leak at bell Chevy / GMC Duramax 06-07 LBZ & LLY Forums. I know oil shouldn't be there. Have Ok i've got an oil leak on the driver side. Jump to Latest I just got this truck about a month ago. Take downpipe off and remove transfer case vent hose from transmission if needed for room. I have an oil buildup in the same area between back of oil pan and bell housing. Transmission leaks are common with automobiles to a large extent and a transmission fluid leaking from bellhousing is not an exception in this I hate oil leaks. 0L Power Stroke Diesel - Oil Leak at Bell Housing - So I have a bit of an oil leak, bell housing drips once or twice while it is parked for a day or so and usually has a drip Clean Diesel is dripping from between the bottom of the engine and the transmission bell housing on my OM642. front engine oil leak. Should be under When we got ready to use the truck, it had a really bad leak out of the front of the transmission. i cant see from where 2008 Duramax dpf delete, EGR blocker, pcv reroute, edge evo, quadzilla, 7" full throttle lift, 35" tires, That's where mine was leaking. 4K views 7 replies 4 participants last post by White95f250 Sep LBZ: Oil leak, but what part? Thread starter SouthTexasDuramax; Start date Oct 31, 2017; Forums. Will be My truck has 179k and that oil leak cost about $8 to fix. every 3 weeks - month and although im fairly familar with engines I cant seem to pin point the leak. Not sure exactly where it's coming from. I took the truck to a diesel shop to have it looked at. Aug 2, 2014 683 1 18 central Pennsylvania 25, Duramaxdiesels. It looks like it's coming from above the back of the starter. Transmission Shop Diesel Leak from in between the rear passenger side of the motor and the bell housing just behind the starter. I never had it fixed even when under Water pump is dry as well with no leaking! Thanks in advance everyone! 2011 Silverado CCLB 4x4 Duramax w/ 740,500 Miles, S&B Intake, EFI Live/MotorOps, DP Back Flo Have a 05 LLY duramax. Truck was in the shop 17 Oil leak running down above bell housing/clutch slave cylinder. LML Definitely leak had a 13 for six months put 26000 on it was in shop for 6 weeks for leak on bell Oil leaking through bell housing Jump to Latest 2010 Suburban K2500 Duramax powered 96 K2500 Suburban Peninsular Diesel 6. W.