automatic trans problem

Reply Subscribe

Thread Tools

Search this Thread

Sep 1, 2014 | 06:47 AM

woodvette03

Thread Starter

Instructor

Joined: Dec 2009

Posts: 208

Likes: 6

From: Baltimore MD

automatic trans problem

have not driven my '76 since last year. finally was able to get it out yesterday. pulled out on the road and the trans would not shift to next gear. went right back home and checked the fluid. a little low so i added some. went back out on the road and the same thing. would not shift. fluid was nice and red, no burning smell. last time i drove it last year it was fine. any thoughts?
thanks in advance for the help.

Sep 1, 2014 | 08:14 AM

JimT

Burning Brakes

Joined: Nov 2006

Posts: 893

Likes: 7

From: Orange Park Florida

If your trans is a th400 check vacuum hose to modulator, and you may have a bad détente relay in the tranny. Not a bad fix but you have to remove the tranny pan. Do a search on the forum for th400 shifting issues. Part is less than $20.

Sep 1, 2014 | 11:54 AM

lvmyvt76

Melting Slicks

Joined: May 2011

Posts: 2,753

Likes: 119

From: Springfield Missouri

if the trans is a 350 like mine, pull the hose off the modulator, see if fluid comes out, if it does , replace it.

Sep 1, 2014 | 08:11 PM

woodvette03

Thread Starter

Instructor

Joined: Dec 2009

Posts: 208

Likes: 6

From: Baltimore MD

crawled under the car and found that the vacuum line fell off the modulator valve somehow. pushed it back on and now she is shifts fine. thanks for the help guys!

Reply Subscribe

Reply Share

First
Prev
1 / 1
Next
Last

Forum Jump