July 22nd, 2015, 10:41 AM
Last edit by: IB Advertising
See related guides and technical advice from our community experts:
Browse all: Engine and Powertrain
- Chevrolet Silverado 1999-2006 GMT800 5.3 L V8 vs. 5.7L V8 Engine Differences
Important information to help you understand your Silverado.
Browse all: Engine and Powertrain
2010 5.3L Chevy Silverado Oil Leak
April 17th, 2012, 10:18 AM
#31
CF Beginner
Join Date: Jan 2012
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
My 09 5.3 had the same issue, brought back to the dealer told them it was the rear main seal, they replaced the pan gasket, still leaked, brought it back they replaced the rear main seal so far all is good,
April 17th, 2012, 2:02 PM
#32
CF Beginner
Thread Starter
Join Date: Jul 2010
Posts: 10
Likes: 0
Received 0 Likes
on
0 Posts
Bowtie, thanks for the response. I started this thread with the original pictures. That was 9,000 miles and change on the truck. The rear main seal was replaced. I am now at 15,000 and change and a leak has redeveloped in the same general area.
November 15th, 2013, 9:16 AM
#33
CF Beginner
Join Date: Nov 2013
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
2009 Silverado XFE Oil Leak for 2 years now
sbfowler, what ever happened with your truck and your oil leak? I have a 2009 Silverado 5.3 XFE with the aluminum block. I have documented 26 service tickets with the dealership concerning oil leaks. They started out replacing a valve cover gasket, then the valve cover, then the put me on an oil consumption test where I took the truck back into the dealership every 1000 miles so they could check the oil. Turns out it was using 1.5 qts every 1000 miles. After 3000 miles, the installed an oil deflector kit and put me back on an oil consumption test. Same thing, I continued to use oil at 1.5 qt per 1000 miles. Next step was to put new pistons and rings in the truck. It seems as if that worked, until I started noticing oil in my driveway. The dealer said the valve cover gasket was bad and changed that out. The about 4 months ago while driving I looked in my rear view mirror and saw blue smoke coming out from underneath the truck. I took it a different dealer and they said the rear main seal was bad. They called me the next day and said that the new seal they installed didn't fix the leak and that when the original dealer pulled my engine months before when they installed the pistons and rings, they must have tightened the crank shaft too tight. The mechanic said he has seen that before and as a result the crank shaft was warped and it would not seal until the crank was replaced. I had it towed back to the original dealership and the kept it for a week and said the crank wasn't warped and that the rear main seal was replaced and fixed the leak. 2 weeks later (today) I go out to get in my truck and there is a qt of oil on my driveway. Took it back to the dealer today. While driving it this morning, smoke was once again boiling out the back. Very frustrated that this has gone on for 24 months and 80,000 miles. Anyone else had this problem??
November 15th, 2013, 9:35 AM
#34
Administrator
Garralli Welcome to the forum...
Wow what a nightmare of an oil leak.... if you have not already I would open a case with Chevrolet Customer Service via this forum. This is too may repeat repairs for the same problem, major repairs at that...
Wow what a nightmare of an oil leak.... if you have not already I would open a case with Chevrolet Customer Service via this forum. This is too may repeat repairs for the same problem, major repairs at that...
February 15th, 2015, 12:19 PM
#36
CF Beginner
Join Date: Feb 2015
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
Cost of oil leak fix?
What is the average cost to fix this type of oil leak?
I've got a slow oil leak on my new 2010 Chevy Silverado with the 5.3L. Took it to the dealer and they put some dye in the oil and will use a UV light to track it down after I drive it around a bit more.
I know it will get fixed, but just bummed that this is happening. When I bought my bride a 2003 Tahoe, it had an oil leak at about 7,000 miles, which turned out to be a bad oil pan gasket. Has been dry underneath ever since it was replaced.
Here's a link to the leak, note the arrows pointing to the leak:
Also, I found the following TSB. This might be the issue. Anyone else having problems with oil leaks on their new 5.3s? Truck only has 3,600 miles on it.
----------------------------------
05-06-01-034J:Engine Oil Leak at Rear Cover Assembly Area
(Engine Block Porosity RTV Repair Procedure) - (Nov 12, 2009)
Models: 2004-2007 Buick Rainier
2008-2009 Buick LaCrosse Super, Allure Super (Canada Only)
2005-2010 Cadillac CTS-V
2007-2010 Cadillac Escalade, Escalade ESV, Escalade EXT
2003-2009 Chevrolet TrailBlazer
2003-2010 Chevrolet Corvette
2004-2006 Chevrolet SSR
2005-2010 Chevrolet Silverado, Silverado SS
2006-2007 Chevrolet Monte Carlo SS
2006-2009 Chevrolet TrailBlazer SS, Impala SS
2007-2010 Chevrolet Avalanche, Suburban, Tahoe
2009-2010 Chevrolet Colorado Pickup
2010 Chevrolet Camaro
2003-2009 GMC Envoy
2003-2010 GMC Sierra
2004-2005 GMC Envoy XUV
2007-2010 GMC Yukon XL, Yukon Denali, Yukon XL Denali
2009-2010 GMC Canyon
2004-2006 Pontiac GTO
2005-2008 Pontiac Grand Prix GXP
2008-2009 Pontiac G8 GT
2009 Pontiac G8 GXP
2005-2009 Saab 9-7X 5.3i
2008-2009 Saab 9-7X Aero
2003-2010 HUMMER H2
2006-2010 HUMMER H3
with 5.3L, 5.7L, 6.0L, 6.2L, 7.0L VORTEC™ GEN III or GEN IV V8 Engine (All Aluminum Block) (RPOs L33, LC9, LH6, LH8, LH9, LM4, LS4, LS1, LS6, L76, L77, LFA, LZ1, LS2, L92, L94, L99, L9H, LS3, LS9, LSA, LS7)
This bulletin is being revised to add RPOs and model years. Please discard Corporate Bulletin Number 05-06-01-034I (Section 06 -- Engine/Propulsion System).
Condition
Some customers may comment on an engine oil leak.
Cause
Upon initial diagnosis, it may be determined that the leak is coming from the rear cover gasket. This condition may be caused by engine block porosity on the sealing surface. This issue pertains to aluminum block applications only.
Correction
Follow the steps for Oil Leak Diagnosis in SI to determine the source of the leak. If the leak has been diagnosed as coming from the engine rear cover assembly, refer to Engine Rear Cover Replacement in SI and remove the engine rear cover assembly. Inspect the engine block and engine rear cover for porosity on the mating surfaces.
• If porosity is found on the engine rear cover (see illustration below), replace the engine rear cover assembly, GM P/N 12633579.
• If porosity is found on the engine block, use the following procedure to apply RTV to repair the engine block porosity.
The porosity issue is in the gasket sealing surface at the top of the cover, near the high pressure oil crossover port. Refer to the picture below. The oil leaks by the gasket and runs down the side of the cover, and may appear to be a leak at the t-joint area of the cover. The fix is to replace the cover with GM P/N 12633579. Also, if porosity is found anywhere on the sealing surface of the engine block, use the following procedure to apply RTV to repair the engine block porosity. Refer to the illustration below.
Important: Clean any residual oil from the block and cover before applying the sealant in the next step.
1. Wipe a small amount of RTV, P/N 12378521 (in Canada, use P/N 88901148), onto the surface using a plastic scraper to fill the porosity.
2. Remove any excess RTV material, especially from inside the high pressure oil passage. Refer to #1 in the above illustration.
3. The joint may be closed immediately after applying the RTV. Total joint time after the RTV has been applied must be under 20 minutes.
Important: Refer to Engine Rear Cover Replacement in SI and follow the tightening specifications and sequence.
4. Reinstall the engine rear cover using a new gasket and a new crankshaft rear main seal. Refer to Engine Rear Cover Replacement in SI.
I know it will get fixed, but just bummed that this is happening. When I bought my bride a 2003 Tahoe, it had an oil leak at about 7,000 miles, which turned out to be a bad oil pan gasket. Has been dry underneath ever since it was replaced.
Here's a link to the leak, note the arrows pointing to the leak:
Also, I found the following TSB. This might be the issue. Anyone else having problems with oil leaks on their new 5.3s? Truck only has 3,600 miles on it.
----------------------------------
05-06-01-034J:Engine Oil Leak at Rear Cover Assembly Area
(Engine Block Porosity RTV Repair Procedure) - (Nov 12, 2009)
Models: 2004-2007 Buick Rainier
2008-2009 Buick LaCrosse Super, Allure Super (Canada Only)
2005-2010 Cadillac CTS-V
2007-2010 Cadillac Escalade, Escalade ESV, Escalade EXT
2003-2009 Chevrolet TrailBlazer
2003-2010 Chevrolet Corvette
2004-2006 Chevrolet SSR
2005-2010 Chevrolet Silverado, Silverado SS
2006-2007 Chevrolet Monte Carlo SS
2006-2009 Chevrolet TrailBlazer SS, Impala SS
2007-2010 Chevrolet Avalanche, Suburban, Tahoe
2009-2010 Chevrolet Colorado Pickup
2010 Chevrolet Camaro
2003-2009 GMC Envoy
2003-2010 GMC Sierra
2004-2005 GMC Envoy XUV
2007-2010 GMC Yukon XL, Yukon Denali, Yukon XL Denali
2009-2010 GMC Canyon
2004-2006 Pontiac GTO
2005-2008 Pontiac Grand Prix GXP
2008-2009 Pontiac G8 GT
2009 Pontiac G8 GXP
2005-2009 Saab 9-7X 5.3i
2008-2009 Saab 9-7X Aero
2003-2010 HUMMER H2
2006-2010 HUMMER H3
with 5.3L, 5.7L, 6.0L, 6.2L, 7.0L VORTEC™ GEN III or GEN IV V8 Engine (All Aluminum Block) (RPOs L33, LC9, LH6, LH8, LH9, LM4, LS4, LS1, LS6, L76, L77, LFA, LZ1, LS2, L92, L94, L99, L9H, LS3, LS9, LSA, LS7)
This bulletin is being revised to add RPOs and model years. Please discard Corporate Bulletin Number 05-06-01-034I (Section 06 -- Engine/Propulsion System).
Condition
Some customers may comment on an engine oil leak.
Cause
Upon initial diagnosis, it may be determined that the leak is coming from the rear cover gasket. This condition may be caused by engine block porosity on the sealing surface. This issue pertains to aluminum block applications only.
Correction
Follow the steps for Oil Leak Diagnosis in SI to determine the source of the leak. If the leak has been diagnosed as coming from the engine rear cover assembly, refer to Engine Rear Cover Replacement in SI and remove the engine rear cover assembly. Inspect the engine block and engine rear cover for porosity on the mating surfaces.
• If porosity is found on the engine rear cover (see illustration below), replace the engine rear cover assembly, GM P/N 12633579.
• If porosity is found on the engine block, use the following procedure to apply RTV to repair the engine block porosity.
The porosity issue is in the gasket sealing surface at the top of the cover, near the high pressure oil crossover port. Refer to the picture below. The oil leaks by the gasket and runs down the side of the cover, and may appear to be a leak at the t-joint area of the cover. The fix is to replace the cover with GM P/N 12633579. Also, if porosity is found anywhere on the sealing surface of the engine block, use the following procedure to apply RTV to repair the engine block porosity. Refer to the illustration below.
Important: Clean any residual oil from the block and cover before applying the sealant in the next step.
1. Wipe a small amount of RTV, P/N 12378521 (in Canada, use P/N 88901148), onto the surface using a plastic scraper to fill the porosity.
2. Remove any excess RTV material, especially from inside the high pressure oil passage. Refer to #1 in the above illustration.
3. The joint may be closed immediately after applying the RTV. Total joint time after the RTV has been applied must be under 20 minutes.
Important: Refer to Engine Rear Cover Replacement in SI and follow the tightening specifications and sequence.
4. Reinstall the engine rear cover using a new gasket and a new crankshaft rear main seal. Refer to Engine Rear Cover Replacement in SI.
Thread
Thread Starter
Forum
Replies
Last Post
zack83
Silverado & Fullsize Pick-ups
1
April 3rd, 2014 9:10 PM
Eric Sherden
Caprice
2
September 24th, 2013 1:21 PM
