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My 94 Grand Prix GT is miss-firing I have changed the wires and plugs what should I do next?

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  • Cars & Trucks Master
  • 752 Answers

Hi Missmommie, I'm glad to help!

The next step would be to have a compression and a leak-down-test done on the engine to see if it's valve related or ring related or possibly a blown head gasket. Hope this helps and have an awesome day.

Posted on Jul 08, 2014

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Posted on Jan 02, 2017

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davidg65
  • 26 Answers

SOURCE: 2002 Pontiac Grand Prix Thermostat

as you face the engine the thermostat bell is on the right (drivers side) Follow the radiatoe hose. Remove the two bolts and raise the bell still attatched to the hose. the thermostat is there with the rubber seal. You can gently pry the thermostat out with a screwdriver or something similar. Put in new thermostat be sure it is the same as the old one, and then replace or change the seal (be sure it is the smae size and thickness as the old one as I got the wrong size from Napa) Then replace the bell, and tighten, but not over tighten. I hope this helps!

Posted on Jan 31, 2009

davidg65
  • 26 Answers

SOURCE: 2002 grand prix

It was the Cat. Converter on mine, Don't drive it like that too long as it will send exhaust back through the EGR Valve and burn a hole in the Intake Plenum....

Posted on Jan 31, 2009

  • 6 Answers

SOURCE: #3 cylinder miss firing--2001 jeep g.c. larado

check from the spark plug back...

Posted on Mar 17, 2009

motor1258
  • 6674 Answers

SOURCE: spark plug gap for 2005 pontiac grand prix gt 3.8

.060 thousandths of an inch.

Posted on Nov 19, 2009

  • 5 Answers

SOURCE: how much to change a oil pan gasket for 2001 grand prix 3.8 gt

If you want to repair the oil pan I would also check lower engine mount for leaking oil and cracks in anti sway bar near fitting's. This due to engine mount is oil filled. OEM sway bar is made of tubular steel and they crack easy. Replacement sway bar is solid steel. Here's the kicker. When they pull the lower frame to service oil pan. The engine mount and sway bar are attached to that frame. A honest mechanic should only charge for parts ($35 for mount and $100 for sway bar) and maybe a extra hour. My mechanic did all in 5 hours. FYI gasket is only $35 bucks. Good luck

Posted on Mar 02, 2010

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