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Q:

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

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
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
(1) Answer
Engine overheating, high temperature vapor lock

Recommendations loosen point of the main needle, then appropriate adjustments to be speed and vice needle.