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Misfire

Tiny
JOHN R. MASK
  • MEMBER
  • 1999 PONTIAC FIREBIRD
  • 3.8L
  • V6
  • 2WD
  • MANUAL
  • 200,097 MILES
Hello, my car has lost power and acceleration. It runs like a bad fuel filter. I changed it, but still runs bad. I am also smelling fuel, but find no leaks and it is making my oil change light come on.
Tuesday, February 28th, 2017 AT 10:35 PM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Check for a very wet spark plug, you may have a leaking injector, but also check that you have good spark at all plugs and the plug gaps are not excessive, start here.
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Wednesday, March 1st, 2017 AT 1:18 AM
Tiny
JOHN R. MASK
  • MEMBER
  • 2 POSTS
So could injector o-rings cause the problem. Oh and tonight it went back to normal for about two miles.
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Wednesday, March 1st, 2017 AT 3:21 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
No, normally if you have a leaking injector it is the internal pintal that weeps they need to be flow tested on a bench tester to see how well they are working.
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Wednesday, March 1st, 2017 AT 3:24 AM

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