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1992 Pontiac Bonneville

Tiny
BIGPIECE
  • MEMBER
  • 1992 PONTIAC BONNEVILLE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 100,000 MILES
I have a 1992 pontiac bonneville 3.8 non super charged. It runs good at an idle but when I go to press down the gas to acclereate it has a small back fire with spitting and aputterinig but when im at speed it runs fine. Need help please
Friday, November 26th, 2010 AT 7:36 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the fuel pressure if okay -test the throttle position sensor and manifold absolute pressure sensor
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Friday, November 26th, 2010 AT 7:38 PM
Tiny
OBXAUTOMEDIC
  • MECHANIC
  • 3,711 POSTS
Hello,

When was your last tune up, plugs, cap and Rotor? If has been a while that is were I would start. Also if the wires are original then I would replace them or if they show signs of cracking or dried out.

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Friday, November 26th, 2010 AT 7:40 PM

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