Question about 2006 Pontiac G6

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2006 Pontiac G6 GTP Transmission Drive Not Working

Will go into reverse, will drive in triptronic *manual, however, 1st gear seems to be slipping, 2nd and 3rd work fine* engine just revs in Drive and won't go anywhere. Any suggestions?

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  • shellymags Jul 30, 2008

    I brought the car to the Pontiac Dealership. They advised that the vehicle needs a new transmission for $3300. Pretty good right for a 2006 car that's two years old. They say it's not covered out of warranty because it's over $36K miles. BS!

  • Anonymous May 08, 2009

    Same here

  • pennywerner May 15, 2009

    My 2006 Pontiac G6 started the slipping when shifting and also when moving gears from R to D, it jerked. Husband changed transmission filter and flushed the fluid, then also changed a camshaft sensor. no success. Took into a non-dealership, advised the Brake Clutch Drum was stripped, replaced for $2100.00 with no success. Took it back in, advised that the camshaft sensor was sensing low oil, did an oil change, worked one day, began jerking and shifting hard again. Two weeks later. Car is still doing the jerking and shifting hard, emissions light is on again; took back to shop where the club drum was repaired to check seals, advised that it probably needs a new computer and take to the Pontiac Dealer. I AM DONE! Car is being traded in; I am not putting forth more money into a 3 year old car.

  • Anonymous May 18, 2009


  • Anonymous Mar 14, 2014

    everytime i start to drive, it has a rough start, and first gear slips and jumps into 2nd gear pretty rough. after that it seems to drive fine.

  • Anonymous Mar 22, 2014

    All gears work manually, in drive it just revs and goes nowhere.

  • Anonymous Mar 26, 2014

    locate the ignition switch in a 2006 Pontiac G6 GTP

  • Anonymous Mar 27, 2014

    01 Jimmy (standard) has trouble shifting out of 1st. Sometimes the ABS and Brake lights turn on/off, also the speedometer gauge is not working or jumps while stuck in 1st. I can drive in D1, D2, and reverse. The gas light will go on and the odometer reads empty or full every other time I start the car. If I pull over, turn off and restart the engine, the truck will shift through all the gears and may have some slipping. If the transmission slips, I go back to just driving slow in 2nd gear. What's going on here?



1 Answer

Trans usually coupled (electroically) with engine revs. check computer chip. perform computer diagnostics.

Posted on Jul 30, 2008


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1998 Pontiac Grand Prix GTP 3.8 supercharge, Automatic Transaxle - 4T65-E rebuilt 2 years ago. Drove to work (26 miles) and all was fine, got in to leave and put gear selector in drive or 1st and nothing...

Your transmission for the GTP should be the 4T65-HD. If in fact it is not then that could very well be the problem. The 4T65-E is for the other 3.8L naturally aspirated models.

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Only reverse works. No foward gears.

No forward movement in OD or D, but L2, L1 and R work: Forward sprag is broken. R&R. Try not to run or drive the car or further damage could result.

Do you have manual 1st? If so, can you shift through the gears...i.e. manual 1st to manual 2nd then 'D' then 'OD'??? Only 1st and 2nd gears use the forward sprag unless the LO/Rev clutch is engaged...i.e. 1st and 2nd if in "drive". If you can shift threw the gears manually then, yes, your forward sprag broke.

If no manual 1st then your sprag is not what broke. Sounds like you blew up the rear planet. If you pull the pan and find chunks of iron and steel, then that is probably what happened. If you have reverse then it is not the pump. If the pump was bad you would have no line pressure and it would slip in rev. or no rev. Not the beef sun shell either because you have rev., a broken sun shell would cause no 2nd, 4th and rev. gears. Either way the trans needs to come out and torn down and it will be easily found what went. Good luck and thank you for using Fixya.

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Sluggish engine pontiac g6

Sounds like a transmission issue, have the car scanned for ant transmission related codes. Most transmission shops will check to make sure your transmission is working 100% free of charge. With what you have described, almost sounds like you don't have 1st or 4th gear and your transmission is running on 2nd and 3rd gear. Easy fix if the 1st-4th solenoid needs to be replaced, or the wire harness has gone bad. Start with getting your car scanned and let me know if your transmission is starting on 2nd. Good luck

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1st gear doesnt work

new computer that controls it all ,dealer only by the sound of it

Aug 22, 2009 | 2006 Pontiac G6

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I have the exact car w/same exact problem. I was told that ist was the speed sensor, which just so happens to be located inside the transmission w/a $400. repair bill.

Mar 03, 2009 | 2006 Pontiac G6

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