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1999 Chevrolet Suburban backfire slow start

Tiny
ROBRYNO
  • MEMBER
  • 1999 CHEVROLET SUBURBAN
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 243,000 MILES
I have a 1999 Chevrolet suburban and problems that it has is backfiring a lot smells bad gas when driving doesnt speed up like it should rpm goes to 4000 on 30 miles an hour and just pops and pops like gun shot
Saturday, January 10th, 2015 AT 7:32 PM

3 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Are the spark plugs soaked in fuel? They had a problem with the fuel injector spiders on those.
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Saturday, January 10th, 2015 AT 7:42 PM
Tiny
ROBRYNO
  • MEMBER
  • 2 POSTS
No I haven't checked that but when we had a tune up done it still has the same problem backfires after backfires and they showed me the old spark plugs yes they were wet and burnt
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Saturday, January 10th, 2015 AT 7:54 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Theres a good chance you have a bad fuel injection spider see if the plugs are soaked in fuel.
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Sunday, January 11th, 2015 AT 4:32 PM

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