Check the tv cable adjustment. It might be too tight. With the motor off, floor the pedal. Then take it for a test drive.
transmission question 700r4
Thread Starter
Instructor
Joined: Mar 2004
Posts: 185
Likes: 0
From: Broomfield Colorado
St. Jude Donor '15
transmission question 700r4
My '88 has a new trick. The transmission when cold, slams into gear when it is put in drive or reverse from neutral or park. It also is late to upshift, although it does finally. After everything is warmed up, the symptoms go away. I have double checked the fluid level (running, in park and at operating temperature). The car has 188k miles and I recently had a shop replace the seals at the convertor to transmission, tail shaft , and speedo drive and shift selector shaft. They had the transmission out of the car but never opened up the internals of the transmission itself. I realize this is probably not a corvette question but is a auto-transmission question, it's just that I come to you guys for any help on this car. Any clues? Thanks! dd
Le Mans Master
Joined: Feb 2005
Posts: 6,485
Likes: 566
From: Clearwater Florida
......... First , adjust the TV cable and see if that helps ... Did this start right after the service ? ... if so , did the shop add any seal or fluid conditioners ... Lucas style ? ..... It sounds like there may have been a viscosity modifier added that would explain the symptoms you are describing ... thicker fluid raises the line pressure til it heats up and thins out a bit ...
Thread Starter
Instructor
Joined: Mar 2004
Posts: 185
Likes: 0
From: Broomfield Colorado
St. Jude Donor '15
700r4 problems
Thanks 383 and 409 for the replys. The symptoms actually started before the shop replaced the seals, it is more pronounced now though. When I first noticed it, I was leaking so much fluid on the garage floor that I thought the fluid was low and that was maybe the cause. I will read up on the T.V. cable adjustment and report back if I find something worth telling about.Thanks guys! dd
Thread Starter
Instructor
Joined: Mar 2004
Posts: 185
Likes: 0
From: Broomfield Colorado
St. Jude Donor '15
about that 700r4 tv adjustment
trying to check the T.V. cable adjustment on my 88 700r4. My cable housing was already all the way back, so even though the "D" button released the cable housing it could only come forward. After a full throttle rotation, there was the same length of exposed cable showing.
Did I miss something? dd
Did I miss something? dd
Thread Starter
Instructor
Joined: Mar 2004
Posts: 185
Likes: 0
From: Broomfield Colorado
St. Jude Donor '15
missing something..........
trying to check the T.V. cable adjustment on my 88 700r4. My cable housing was already all the way back, so even though the "D" button released the cable housing it could only come forward. After a full throttle rotation, there was the same length of exposed cable showing.
Did I miss something? dd
Did I miss something? dd
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
on 88 and up transmissions, there is an accumulator added to keep that from happening. It sorta sounds like the little tube that sends fluid to it may have come loose or the gasket is weeping when cold, or the check ball has worn through the sparator plate that is between the valve body and the main case......
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