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Backfiring through exhaust

Tiny
STUPID CARS
  • MEMBER
  • 1996 CHEVROLET S-10
  • 95,000 MILES
Have changed timing chain, plugs, wires, cap and rotor, set timing, have taking battery cable off to drain computer. No help at all and the mass air flow was replaced
Sunday, September 25th, 2011 AT 8:30 PM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,874 POSTS
Either the timing is off or you have a burnt exhaust valve. Check engine compression to see if there is a weak cylinder.
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Sunday, September 25th, 2011 AT 8:34 PM
Tiny
STUPID CARS
  • MEMBER
  • 3 POSTS
Thanks, timing is good. This didnt start until after we changed plugs, it was running fine just time to change them.
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Sunday, September 25th, 2011 AT 9:07 PM
Tiny
STUPID CARS
  • MEMBER
  • 3 POSTS
Timing is good, the backfiring didnt start until after the plugs were replaced
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Sunday, September 25th, 2011 AT 9:37 PM
Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
You need to check the firing order of the plug wires to the cap.
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Sunday, September 25th, 2011 AT 11:12 PM

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