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1990 Chevy Silverado intermittent backfire

Tiny
MIKE530
  • MEMBER
  • 1990 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 165,000 MILES
90 chevy pickup k2500 5.7 intermittent backfire into intake. Randomly the engine will slow and act like it is missing or timing is way off.
cold or hot, slow or freeway speed.
Saturday, February 27th, 2010 AT 3:55 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,709 POSTS
Has the check engine light ever come on? Have you checked fuel pump pressure? Have you checked for vacuum leaks? Finally, have you checked to see if the catylatic converter is plugging?
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Saturday, February 27th, 2010 AT 11:49 PM

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