My 01 yukon xl is running terrible in the morning when its cold. I have misfire code and white, dry sparkplugs. If someone could give me a starting point hopefully I can take it from there. I work on BMW's so this a whole different ballgame for me. Any help would be greatly apreciated.
stumblin' cold start then surge then stumble repeat
- Thread starter diggyd357
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BRUTUS_T_HOG
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Well shrunken intake gaskets are fairly common. Once the engine warms up the vacuum leak seals and runs ok. You can find it with water or some flammable spray to see if the engine smooths out
Screwd up 6
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Agree with what was said above. I replied in your other thread.
The fuel lines are kinda a pain, but go to the autoparts and spend $10 on the fuel line tool and it makes life much easier.
The fuel lines are kinda a pain, but go to the autoparts and spend $10 on the fuel line tool and it makes life much easier.
Thanks guys! Also, I apologize for double posting. I recently changed phones and didn't have all my accounts linked soI was a little cconfused as to which sites I posted on. Anyway, I just ordered the gaskets and feel confident this is gonna fix it. I had a similar problem with my BMW and while it's a day to night difference in automobiles intake and vacuum properties are the what they are no matter the vehicle. I'll post my results.
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