YES I NEED SOME HELP, I HAVE NOTICED A FLUTTERING SOUND WHEN I PUSH ON THE GAS on 2002 GMC Yukon XL 1500

YES TO ADD TO MY QUESTION, IT ONLY MAKES THAT NOISE WHEN I ACCELERATE

by in Washington, DC on November 09, 2012
2 answers
ANSWER by , November 09, 2012
most likely a misfire under load. that is common
ANSWER by , November 09, 2012
it's a misfire