Problem shifting from 3rd to 4th
Thread Starter
Team Owner
Joined: Oct 2000
Posts: 29,937
Likes: 22
St. Jude Donor '03-'04
Cruise-In 1-2-3-4-5 Veteran
Problem shifting from 3rd to 4th
1998 Coupe, 92000 miles, transmission was rebuilt for 1st-2nd synchros last year. Has a C6Z shifter now. CAGS was still enabled before I bought the car.
Every time I drive the car after it's been sitting overnight (doesn't matter what temp it is/was) the first two times I shift from third to fourth the shifter chatters back at me before going into gear.
After two good upshifts there are no more problems and the problem does not reoccur until the car sits un-driven for several hours (8+).
So... what's up here?
Old fluid or low fluid?
Misaligned shifter?
3-4 synchros going bad?
Every time I drive the car after it's been sitting overnight (doesn't matter what temp it is/was) the first two times I shift from third to fourth the shifter chatters back at me before going into gear.
After two good upshifts there are no more problems and the problem does not reoccur until the car sits un-driven for several hours (8+).
So... what's up here?
Old fluid or low fluid?
Misaligned shifter?
3-4 synchros going bad?
Melting Slicks
Joined: Feb 2003
Posts: 2,966
Likes: 22
From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11
It could be one of the synchro keys going bad in your 3-4. When you replaced the 1-2 synchro last year, did you do any upgrades at all while it was apart? Look in my sig. The upgraded parts are from RPM Transmissions. If you didn't upgrade, I would strongly suggest you do if you have to go in to the trans this time. Give Rodney a call, he will take care of you! 
