Question about 1999 Pontiac Sunfire

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I have a 1999 Pontiac Sunfire with an automatic transmission. When I put it in drive and give it a shot of gas, or put it in reverse and take the same action I hear a knocking noice in the front end passanger side

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Either a worn CV Joint or trans issue. Need more discription. Are you able to drive it, and does it shift okey?

Posted on Sep 04, 2010


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Posted on Jan 02, 2017


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1999 pontiac grand am gt 3400 automatic repair manual

I see a complete transmission rebuild in your future. No simple fix for this.

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Take it to a shop where they can put it on a lift - the park/neutral switch is located on the left side of the transmission. You could crawl under the car, disconnect the wiring connector, remove the old switch, and reverse the process for the new one...but it's a tight squeeze under there unless you put the car on ramps or jackstands.

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I have a 1999 Pontiac Sunfire. Transmission is going out I think. When I put it into reverse it's sometimes goes into reverse and sometimes doesn't but I hear a loud knock. fluid is right and not...

putting it into a gear and hearing a knock indicates that the engine mounts or transmission mounts are broken
naturally if you put it in neutral it will not move as that what neutral is
perhaps the neutral position needs adjusting as it may still be in drive
have the fault codes read to determine any sensor/servo/solenoid faults before spending big money on a transmission

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1 Answer

My 1999 Pontiac Sunfire GT 2.4L Automatic Gear Selector is broken

you car likely thinks its stuck in reverse, which it may be... even if you can roll it. you'll need to find a way to either get it into park or neutral, normally this can be done by the actual linkages under the shift console or from underneath the car.

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ooooo, sounds like internal transmission failure, most likely the sunshell is stripped out.

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I have a 2000 pontiac sunfire it will go into reverse then when you hit the gas it will just rev up has no problem in forward

first check your transmission fluid level. if thats good the transmission probably is bad.

Jan 03, 2010 | 2000 Pontiac Sunfire

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2004 pontiac sunfire won't drive forward but goes

That would be your transmission. The only way to fix it is to have it rebuilt or buy new, both are around the same price sometimes. Sorry to hear your troubles.

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1997 pontiac sunfire GT Transmission problem?

If you have a Manual transmittion it sounds as if your clutch has just about had it. If your vehical is an automatic more then likely the trans is slipping

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