Transmission trouble!
Thread Starter
4th Gear
Joined: Jan 2012
Posts: 4
Likes: 0
Transmission trouble!
Hi all. I am new to the forum & also a fairly new corvette owner. I bought my 84 from a friend at church about a year ago. So far, I have done all of the repair work myself. Then the tranny went out. I bought a used one from a corvette place & my neighbor & I removed the old one & put in the new one. It will not shift out of 1st when in OD, but I can shift if manually at around 3-4Gs. I have been doing a ton of research & have come to a couple conclusions: its an electrical problem caused by a bad fuse (which I cannot find) or possibly the filter. Another friend who worked on trannys (especially the 700R) says because it is slamming into drive & since I can manually shift it, its an electrical problem. In my repair manual, it shows a GA. Trans fuse (20amp) in the fuse box. There is no such thing in my fuse box. Is this an in-line fuse? I can't for the life of me find it. I really don't want to have it towed somewhere, but I am almost at that point. Any help would be greatly appreciated!
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Only thing controlled by elec on your version is the convertor lockup
Was the cable that adjust the shift points set correctly?
See
http://sethirdgen.org/tvcable.htm
if the cable is set correct could be other mech problems like the governor sticking ( not uncommon )
Last edited by rodj; Jan 22, 2012 at 08:13 PM.
Drifting
Joined: Jan 2007
Posts: 1,908
Likes: 3
From: Supreme Soviet Peace-Loving Pipple's Kollektive of Seattle Wa
When you installed this replacement tranny, was it a rebuilt or a wrecker unit sitting around?
If the TV adjustment doesn't make a difference, drop the pan and inspect the fluid for metallic debris, water etc. Does it smell burned?
Instead of towing, you can drop the box and take it into a shop for diagnosis but having the whole car there for test drive is best.
Thread Starter
4th Gear
Joined: Jan 2012
Posts: 4
Likes: 0
I have replaced the TV cable (because the old one was cracked & worn out), adjusted it & still nothing. As far as the governor gear, I am almost positive we checked that before we put it on because I had to take the tail housing off of my old one & put it on the new one, so I believe it is ok. The used tranny came off of an '87 & the owner of the shop said that it was out of a working car that had other problems, so thats why they are parting it out. He gave me a 30 day warranty on it. I don't believe it was rebuilt, or at least he didn't tell me it was.
Thread Starter
4th Gear
Joined: Jan 2012
Posts: 4
Likes: 0
Yes, its still under warranty. The only problem is that the corvette place is over an hour away. I'm having it towed today to a tranny shop about 10 miles down the road. They said they will diagnose it for free. Hopefully it won't cost me an arm & a leg. I will let you all know what the diagnosis is. Thanks for all your replies!! 
