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How do you fix backfire and overheating for 1987 GMC Suburban R2500
have the same problem?
Sunday, May 6th, 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.
Tuesday, May 8th, 2007 AT 5:35 PM
to post a reply.
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