Hard 1-2 shift

**79Firebird_99TA** · 08-29-2007, 05:46 PM

The TA is shifting hard from 1st to 2nd. I have no codes and it is not in limp mode. This just started last week. Any ideas?

**milleniumz** · 09-22-2007, 09:15 AM

ttt

????

**performabuilt** · 09-24-2007, 07:42 PM

Broken or stuck accumulator or bad PCS would be my guess or possibly ball came through the plate

**SteveC** · 10-02-2007, 03:23 PM

My 01 Z28 shifts very hard from 1st to 2nd, I have a billet 2-4 super servo, and a transgo shift kit #3 washer.

If you have any of these components that could be why the shift is that hard.

SteveC

**79Firebird_99TA** · 10-02-2007, 03:42 PM

Well the thing is .....it never did until recently. I must say that I like it....but it's different.

**slims00ls1z28** · 10-04-2007, 06:30 AM

You'll like it until it fails. Get it checked out.

**Pro Built Automatics** · 10-07-2007, 01:07 AM

"My 01 Z28 shifts very hard from 1st to 2nd, I have a billet 2-4 super servo, and a transgo shift kit #3 washer."\
Take out all of the washers, I never use them in any of my Performance buildups. This should make a big difference. If the 2nd feed hole on the separator plate is larger than .093", that can cause hard 1-2 part throttle shifts. Start with taking out the washers, and see what happens.

**SteveC** · 10-07-2007, 06:56 AM

Originally Posted by Pro Built Automatics

"My 01 Z28 shifts very hard from 1st to 2nd, I have a billet 2-4 super servo, and a transgo shift kit #3 washer."\
Take out all of the washers, I never use them in any of my Performance buildups. This should make a big difference. If the 2nd feed hole on the separator plate is larger than .093", that can cause hard 1-2 part throttle shifts. Start with taking out the washers, and see what happens.

I actually like how the vehicle shifts, and have no problems with it. You are obviously far more experienced in the automatic transmission field than I will ever be.

I had the transmission work done by a professional shop (Mike's) in Poway, and I trust that the work was done correctly. It was Mike's idea to swap the stock LS6 servo out for this unit.

Thanks for the tip.

SteveC