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Back fires

Tiny
ERWIN VASQUEZ
  • MEMBER
  • 2008 CHEVROLET SILVERADO
  • 60,000 MILES
My truck runs great all the time but only when I reach sixty miles and take my foot off the gas creates a compression while shifts gears and when I step on the gas makes the back fire noise.
Saturday, January 26th, 2019 AT 5:33 PM

7 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

Are there any codes set for the engine control system?

https://www.2carpros.com/articles/engine-backfires-while-running

This usually happens when spark happens at the wrong time.

Roy
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Saturday, January 26th, 2019 AT 5:39 PM
Tiny
ERWIN VASQUEZ
  • MEMBER
  • 4 POSTS
Yes sr, my mechanic replaced all the sensors the computer call for, spark plugs, wires. The muffler shop replaced the donut seal where the back fire was
Showing to happened.
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Sunday, January 27th, 2019 AT 4:34 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Did they resolve it or is it still doing it?

Roy
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Sunday, January 27th, 2019 AT 5:25 PM
Tiny
ERWIN VASQUEZ
  • MEMBER
  • 4 POSTS
Still doing it.
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Monday, January 28th, 2019 AT 5:49 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
And what about the timing and compression?

Roy
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Monday, January 28th, 2019 AT 6:03 AM
Tiny
ERWIN VASQUEZ
  • MEMBER
  • 4 POSTS
I’m sure the timing is right since it drives without any missing at all. I’ll get my mechanic to check the compression. It’ll be until the weekend since that’s the only truck I have for work. Thank you for the info.
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Monday, January 28th, 2019 AT 1:55 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Your welcome

Always glad to help

Roy
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Monday, January 28th, 2019 AT 1:56 PM

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