BACKFIRE

  • Tiny
  • joel_chiu969
  • GMC C2500

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

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Sunday, May 6th, 2007 AT 5:35 PM

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  • Tiny
  • rasmataz
  • Member

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

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Tuesday, May 8th, 2007 AT 5:35 PM

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