exauhst manifolds glowing red.but i have no cat

Asked by Bobby Mar 23, 2013 at 03:01 PM about the 1994 GMC Suburban K1500 4WD

Question type: Maintenance & Repair

exauhst manifolds glowing red.but i have no cat

5 Answers
69,815

John answered 11 years ago

Roy wtf are you talking about? The only fuel that might cause this is alcohol and it's doubtful he is running that. The timing will make the truck run like crap before it cherries the exhaust and he would be here with that issue instead of the one he has. Tenspeed is spot on.

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