Why is my truck backfiring and missing?

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CLAYTON040584
  • MEMBER
  • 1 POST
I have a 1995 Chevy truck with a 5.7L throttle body. I am having issues with it; I start it and it runs fine I even drive it and it drives fine, but only for the first 5 miles. after that it starts sputtering and backfiring. I have put in new fuel pump, new coil, i thought of doing the rotor button and distributor but i feel as though if those were the issue i would have the issues right from the beginning of starting my truck. Please help me. Thanks
Jul 23, 2012 at 3:47 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
i would monitor the fuel pressure cold and hot. start there

Roy
Jul 23, 2012 at 4:15 PM
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