Vehicle backfires while running

Tiny
ANONYMOUS
  • MEMBER
  • 1999 CHEVROLET SUBURBAN
  • 18,900 MILES
Vehicle backfires while running
Monday, March 25th, 2013 AT 7:30 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Some possibilities.
Check the egr valve.
Sticking or leaking valves.
Valve timing.
Check for vacuum leaks.

How long since a tune-up? Are there any applicable trouble codes?
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Monday, March 25th, 2013 AT 8:07 PM

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