Thread: Transmission problem when pulling out.

I have a 2003 Pontiac Grand Prix Gt with 134,xxx miles on it. I have an intermittent issue that I was hoping someone might know the cause. When I drive the car, sometimes, randomly when pulling out from a light, it will rev up a bit and slam into gear. Almost like you are doing a neutral drop but not that hard. I pull out slow and once in a while you can tell it still happens. Other than that it shifts perfectly fine, it never slips, and drives excellent. Its only happening less than 10% of the time. I did do a filter and fluid change and it still seems to be happening.

1999 Grand Prix GT. I am on my 3rd transmission at 170,000 miles. This last one reman shifted badly from day one. I change the Throttle positioner sensor which help tremendously. The only problem I have now is sometimes when I come to a rolling stop at a stop sign and feed gas I get the jerk you are talking about. The trans has a 3 year 100,000 warranty. They can not find anything wrong with it as the jerk is only once in a while and was not happing when I brought the car back. These transmissions s**k. I would run it into the ground as even shelling out $2800.00 for a reman will not guarantee fixing your problem.

Changed my throttle positioner sensor if you read my post. Improvement but no cigar.

I've got the same thing going on, did the Transgo kit and it seemed to get better but it's back to normal. I thought the cause of this was the pressure control solenoid?

Food for thought, if I manually put the gear selector in 1st before pulling out it doesn't happen.

When you manually select first it ups the line pressure.
you can get a tune to bandaid the issue. But it will come back.

I had this this issue. It will get worse and worse till you are afraid to come to a stop lol. Dont bother with lucas it don't help.
Just replaced my trans due to this issue so your options are either rebuild or replace with jy trans.