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Question about 1998 GMC Suburban

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Truck was running great next morning went to start,it cranks & cranks then backfires.Sound like timimg?

Fuel filter,seemed like I wasn't getting enough gas

Posted by terrie nichols on

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baljit singh

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The backfires occurs in airfilter assembly as it was remain opened from somewhere fix it properly

Posted on Dec 08, 2014

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You have so many separate issues. First, backfiring can be from a bad valve, low fuel pressure or crossed wires or.... The next thing is you could have a bad pcm, ecm, or body module. You should pay $80 to a shop that has diagnostic tools to trace the issue. That is going to drive you crazy without the proper diagnostic tools!

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I think it's the fuel pump or the fuel pump filter.

Check the fuel system that's where your problem is, my bet is your fuel pump has left this world to a better place.
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