BACKFIRE

GMC C2500

Tiny

joel_chiu969

May, 6, 2007 AT 5:35 PM

How do you fix backfire and overheating for 1987 GMC Suburban R2500

FOUND 1189 RELATED QUESTIONS

1 Answer

Tiny

rasmataz

May, 8, 2007 AT 5:35 PM

Could be an ignition wires crossover-routed incorrectly/ air injection diverter valve/could also be a partial clogged catalytic converter.

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