VEHICLE BACKFIRES WHILE RUNNING

  • Tiny
  • Anonymous
  • 1999 Chevrolet Suburban
  • 18,900 miles

Vehicle backfires while running

Monday, March 25th, 2013 AT 7:30 PM

1 Answer

  • Tiny
  • JDL
  • Expert
  • 16,236 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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