Oct 20, 2011 #1 C cody Member Joined Jun 4, 2008 Messages 515 Reaction score 0 Points 16 my gmc will run fine then it wont rev up at all y its at speed then if i shut it off for about 30 minutes then its back to normal any suggestions
my gmc will run fine then it wont rev up at all y its at speed then if i shut it off for about 30 minutes then its back to normal any suggestions
Oct 22, 2011 #2 D Damion New member Joined Mar 20, 2009 Messages 4 Reaction score 0 Points 1 replace the mass air flow sensor