Any thoughts

[blacktransamws6]

I have a 2000 Trans am WS6 automatic all stock. Every once in a while when beginning to accelaratefrom a dead stop the car jerks while changing from 1st to 2nd gear and sometimes is very smooth . Very sporadict happens at various accelaration rates.

Is this tires related ? Transmission ? Differential ? Or Other?

Maybe the Poly Transmission mount?

Any thoughts are greatly appreciated.

[blacktransamws6]

anyone?

[nhraformula]

does it sound like its hitting the floor board?

[blacktransamws6]

no, is more like rough change in gears coming from the rear end of the car.

[mrr23]

last time you did a transmission fluid and filter change?

[blacktransamws6]

About 20,000 miles.

[blacktransamws6]

how could I tell if it is hitting the floor board. The sound appears to come from the rear end of the car sometimes is harder than others and sometimes is very smooth.

[00WS6_TA]

U-Joint. Mine is going bad. I can hear it knock when i take off.

[blacktransamws6]

Where is the U joint? How can I tell if its bad? Thanks

[mrr23]

u-joint is located on the driveshaft. one towards the front and one towards the rear. here's a pic of the rear one.

http://www.stealthram.com/familypics/formula00/tranny/removedriveshaft.jpg

[blacktransamws6]

How can I tell if its bad?

[blacktransamws6]

What should I be looking for in the U joint and in the Tran mount?

[blacktransamws6]

I finally was able to look under the car today. I check the trans mount and looks solid. no cracks. Try to move it and it wouldnt budge. The same is true for the u joint and the drive shaft. Anything in particular I should be trying to pin point the problem?

[BeachZ]

I have a 2000 Trans am WS6 automatic all stock. Every once in a while when beginning to accelaratefrom a dead stop the car jerks while changing from 1st to 2nd gear and sometimes is very smooth . Very sporadict happens at various accelaration rates.

Is this tires related ? Transmission ? Differential ? Or Other?

Maybe the Poly Transmission mount?

Any thoughts are greatly appreciated.

When was the last time you changed your fuel filter?

[blacktransamws6]

about 20000 miles ago did it with the trans and differential change

[BeachZ]

about 20000 miles ago did it with the trans and differential change

In Socal, what with all the crappy gas running around, that's a long time to go between fuel filters. Just a thought...

[blacktransamws6]

The thing is that it only does it when it shifts from 1st gear to 2nd. It is a sudden jerk where the wheels sound like they are skipping along with a loud thud. Sometimes is very smooth like new.

[WS_SEXY]

I had the same problem. I just replaced my tranmission mount today and the problem is fixed. autopartswarehouse.com. Make sure thats the right part. One requires modification and the other is a direct bolt on.