1999 Pontiac Grand Prix GT from North America - Comments

26th Mar 2007, 18:02

"You get what you pay for"

What things have gone wrong with the car?

Headlights are fogged up.

Replaced transmission at 97,000 miles.

Illumination on radio readout has gone out.

Water leaks into passenger side carpet from firewall when driving in heavy rain.

Engine misfires after switching into third gear.

Mechanic has replaced plugs and wires and cleaned injectors, still misfiring. No codes showing.

Anyone else have this problem?

Any suggestions?

General comments?

The GT Coup handles well and has a sleek look.

Ample interior room for a six footer in front.

Cramped space for adult in rear.


26th Mar 2007, 18:34

Hey, I have a 99 Monte Carlo, and my car still misfires after I changed my plugs and wires. My computer showed no codes either, so I don't know where the misfire is coming from. I heard it might be a fuel injector, so I am going to try that. If you find out what is causing your Grand Prix to misfire, please let me know. Thanks (If I find out any info, I'll let you know.


27th Mar 2007, 02:00

Some transmissions have a valve problem which makes the car feel like its misfiring look into it...

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