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Backfiring intermittently

Tiny
JMCCALL21
  • MEMBER
  • 1998 ALL OTHER MAKES RECREATIONAL VEHICLES
  • 7.5L
  • V8
  • 2WD
  • AUTOMATIC
  • 27,000 MILES
Engine is backfiring intermittently. Is backfiring through exhaust. Has new fuel filter and checked all points on distributor cap. Before it backfires it will lose power and after it backfires you can let engine cool and it will not backfire for approximately forty five minutes then it will start again. Have not checked fuel pressure. What would be some things that would cause this issue? Tired of replacing parts.
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Tuesday, January 17th, 2017 AT 6:13 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuel pressure with a gauge auto parts rent it, see link. also, check for vacuum leak like hose off/broken etc.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Tuesday, January 17th, 2017 AT 6:24 AM

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