2005 GMC Yukon Q&A

2005 GMC Yukon Question: Seems when the engine gets warm, it starts to misfire.. not transmission.

been to several mechanics and the dealer. only happens when engine is warm, then is misfires, lurches.. like timing maybe off? Spark plugs misfiring? help -
Answer 1
Engine overheating, high temperature vapor lock Recommendations loosen point of the main needle, then appropriate adjustments to be speed and vice needle. -