Smoking exhaust on startup

[ama299]

Hello this is my first post.

I have an 03 Yukon XL with the 5.3. Some times when I start it it lets out a big buff of blue smoke that smells like gas. I have brought it to the dealer several times and they finely said it's the valve seals. I'm looking for second opinions and the extended warrenty will not cover it sense its normal wear and tear. It has 70,000 miles on it. FYI-back in Jan I had to replace the head Gaskets. I have only had the thing sense Dec. and its in the shop more than in my drive way. What do you guys think?

 

[JKmotorsports]

Sounds like the valve stem seals. Oil seeps past the valve stems into the upper cylinders and when you start it up, the oil burns a bluish color.

 

[Rivieraracing]

Valve guide seals for sure!!

 

[STREETutilityVEHICLE]

i knew right away what this was, but it's obviously been answered... good luck

 

[unlukky]

Sounds like the valve stem seals. Oil seeps past the valve stems into the upper cylinders and when you start it up, the oil burns a bluish color.

+1
FTW
:yaya:

 

[dye4metal]

you should try seafoaming and see if it helps get rid of the blue smoke

 

[ama299]

Thanks for all the replys I was just checking. I wanna put money into the truck, but not this way. Was hoping for new rims or something.

 

[greengumby]

you should try seafoaming and see if it helps get rid of the blue smoke

Your right! it replaces the blue smoke for some awsome bone chillin white smoke...

 

[ama299]

update

After complaining to the owner of the car dealership they had me bring it back in and guess what my heads are cracked.

background info:
Back in Jan. they replaced the head gaskets, and it was blue smoking still when I got it back and they said it will be okay just keep driving it, and then the low coolant light comes on just like before and then that is when I got a hold of the owner of the place. I'm sure getting my use out of my extended warranty.

I purchased the the Yukon in Dec 07 so yea they sold me a vehicle with 2 cracked heads. I should have known when the sales guy said the person who traded that in had a upside down loan on it, but of course I did too.

 

[Polecat]

yep...tell-tell sign of cracked head, smoke, and loss of water and you have no idea where the water went,.,,,sux

 

[road1will]

After complaining to the owner of the car dealership they had me bring it back in and guess what my heads are cracked.

background info:
Back in Jan. they replaced the head gaskets, and it was blue smoking still when I got it back and they said it will be okay just keep driving it, and then the low coolant light comes on just like before and then that is when I got a hold of the owner of the place. I'm sure getting my use out of my extended warranty.

I purchased the the Yukon in Dec 07 so yea they sold me a vehicle with 2 cracked heads. I should have known when the sales guy said the person who traded that in had a upside down loan on it, but of course I did too.

Yikes, sounds like someone overheated the hell out of that truck.

 

[MadMedwyn]

It sucks you're having all these problems at just 70k miles. I know people with burbs with 170k miles and they still dont smoke.