Oil consumption scares, questions, and experience(so far) - Page 2 - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 5.3L V8 Engine and Drivetrain > OEM Issues

OEM Issues Original Equipment Repairs and/or Problems

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  #11  
Old 11-09-2012, 08:45 AM
stpolo stpolo is offline
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2005 GMC Envoy Denali
Summit White 5.3L V8 4X4
Join Date: Jun 2007
Location: Oshkosh, WI
Posts: 22
Hi Farmer, I'm sorry I shouldn't have made it sound like I did the work. I took our Envoy to the auto shop that I've been going to for the last two years. I've been fortunate to find a very honest, professional, and fair priced auto shop. I'm not employed by them, or have any financial or family ties to them, but if you want a really great place to take your vehicle stop by TML Auto in Greenville. They replaced the driver side valve cover for $261. I'll keep an eye on the oil consumption and the puff of white/blue smoke on cold starts after a long trip. Hopefully this fixes it!
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  #12  
Old 11-11-2012, 11:51 AM
shadowwar shadowwar is offline
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2006 GMC Envoy Denali XL
Liquid Silver Metallic 5.3L V8 AWD
Join Date: Mar 2009
Location: Jackson, NJ
Posts: 8
Rockauto has the valve cover and gasket as a set for $72.79

DORMAN Part # 264965
{#12570427}
Left

http://www.rockauto.com/catalog/more...000&cc=1432190

enter this code for how did u hear about us in the checkout shopping cart screen for additional 5% off

14DBBA82554B

note: i just googled for the code. i am not an affiliate or anything.
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  #13  
Old 12-03-2012, 06:10 PM
Troopr31 Troopr31 is offline
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2007 GMC Envoy Denali
Summit White 5.3L V8 4X4
Join Date: Aug 2011
Location: Central PA
Posts: 15
Does anyone who has done this mod know if they (GM) changed to this "upgraded" valve cover in a certain year...just from looking on this thread, it seems as if everyone that did this MOD has a 2006.

I am also using more oil than I feel is acceptable (Almost a quart per 1000 miles). Our '07 Denali has 72,000 miles, doesn't smoke on start-up, and the valve train doesn't make any noise...

I just want to make sure that I don't buy this part, got through the headache to swap it out, just to find that I replaced the "old" valve cover with a "new" one that is the exact same!!
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  #14  
Old 12-03-2012, 06:54 PM
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Pineapple Pineapple is offline
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2004 Chevy TrailBlazer LT
Majestic Red Metallic 4.2L I6 4X4
Join Date: Dec 2012
Location: Sandy Eggo
Posts: 2
I work on these 5.3L with AFM all the time for oil consumption.
GM wants us to decarbon the rings/pistons, install updated drivers valve cover and install oil deflector in oil pan. Then do a consumtion test and replace all pistons with rings if no improvement.
Honestly I think just the deflector and mainly the updated valve cover will do it. But...pistons pay more.
Check with Dealer if your vehicle is still under Powertrain Warranty, if not complain to Service Manager!
If out of warranty I would suggest a new valve cover from a Dealer, not aftermarket. Easy to change.

Good luck.
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  #15  
Old 01-09-2013, 09:32 PM
Farmer Farmer is offline
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2004 GMC Envoy SLT XL
Sand Beige Metallic 5.3L V8 4X4
Join Date: Nov 2012
Location: Little Chute, WI
Posts: 5
5.3L uses oil at highway speeds

I've been closely monitoring oil consumption in my 2004 5.3L (without active fuel management - that feature came along later). Now that fishing season is over, I haven't been towing my boat, and have been driving fewer highway miles. Oil consumption with city driving is very minor. At highways speeds, oil is being used. 70 mph uses more oil than 60 mph. No surprise, towing a 3800 lb boat at 70 mph uses the most oil. I added a quart at 1400 miles - over half of those miles were in town. So as of right now, I'm leaning towards the valve cover replacement at my next oil change.
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  #16  
Old 02-24-2013, 09:30 PM
vicdub85 vicdub85 is offline
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2007 SAAB 9-7x
Carbon Metallic 5.3L V8 AWD
Join Date: Jun 2009
Location: Indianapolis, IN
Posts: 74
Quote:
Originally Posted by New Envoy View Post
If I can find the parts, I'll be doing the cover and gasket replacement this weekend. I'll post back with the results. I may even try to get some pics!

JUst an update: I found the gasket and the cover online at O'Reilly for $104.99 for the set! Looks like its a go for the weekend.....
Any updates? Did the replacement fix your oil consumption issue?
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  #17  
Old 02-25-2013, 01:19 PM
Farmer Farmer is offline
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2004 GMC Envoy SLT XL
Sand Beige Metallic 5.3L V8 4X4
Join Date: Nov 2012
Location: Little Chute, WI
Posts: 5
My valve cover replacement is scheduled for this Wednesday. Hope it works!
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  #18  
Old 02-25-2013, 02:30 PM
FrizB FrizB is offline
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2006 GMC Envoy Denali
Black 5.3L V8 4X4
Join Date: Oct 2007
Location: Indianapolis, IN
Posts: 9
Just an update...

It has been almost 10 months since I have had the valve cover replacement and all is well. I haven't had any issues with excessive oil consumption. Whether or not this fixes everyones problems, I am not sure, but it sure did fix mine. Hope everyone else has the same results.

Thanks.
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  #19  
Old 02-25-2013, 03:50 PM
Troopr31 Troopr31 is offline
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2007 GMC Envoy Denali
Summit White 5.3L V8 4X4
Join Date: Aug 2011
Location: Central PA
Posts: 15
Quote:
Originally Posted by FrizB View Post
Just an update...

It has been almost 10 months since I have had the valve cover replacement and all is well. I haven't had any issues with excessive oil consumption. Whether or not this fixes everyones problems, I am not sure, but it sure did fix mine. Hope everyone else has the same results.

Thanks.
Friz,

Did you get a "genuine" GM valve cover, or an aftermarket as referenced above from Rockauto? Obviously there is a significant difference on price between the two...
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  #20  
Old 02-25-2013, 04:08 PM
FrizB FrizB is offline
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2006 GMC Envoy Denali
Black 5.3L V8 4X4
Join Date: Oct 2007
Location: Indianapolis, IN
Posts: 9
The dealer replaced the cover so I'm assuming it was the Geniune GM model.

Gasket - Part#: 12637683
Cover - Part#: 12570427

Good luck!
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