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Engine backfires and the belt squeals

Tiny
SWEYER
  • MEMBER
  • 2000 CHEVROLET BLAZER
  • 4.3L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 137,619 MILES
Starts and runs, sometimes backfires and the belt squeals often. Not entirely sure what the problem is.
Sunday, December 17th, 2017 AT 11:51 AM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning my name is Roy and I will assist.

Backfiring means spark when it was not called for. Check all you ignition components first. That is, plugs, wires, cap and rotor. While the plugs are out, do a compression test to verify the engine is good and it will also tell if you have a timing chain issue.

Try this and get back to us with the results.

Roy
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Sunday, December 17th, 2017 AT 11:07 PM
Tiny
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  • MEMBER
  • 2 POSTS
Thank you I will try that and get back to you. Thank you again.
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Sunday, December 17th, 2017 AT 11:20 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Roy
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Sunday, December 17th, 2017 AT 11:23 PM

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