96 Pontiac Transport TRANSMISSION

ETTEVYECNOP

MEMBER
1996 PONTIAC TRANSPORT

I have a 96 transport, 140,000 miles will not go into reverse or first gear. My husband pulled off the pan and there were no shavings in it. He also replaced the vacuum modulator. If the van is pushed, once it reaches about ten miles per hour the van will shift into second and continue to shift until it stops again. Then it has to be pushed again. If anyone can give us some help on what the problem could be we'd really appreciate it. We were told that if the pan did not have any junk in it, then it was more than likely a hydraulic or electrical problem.

2 Replies

CLY

MECHANIC
308 POSTS

I would lean towards the hydraulic side of the trans. More than likely an input clutch seal has failed. That will give you no reverse or drive. Can't say that I ever pushed one to see if second gear would kick in at higher speed tho.

Cly

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Wednesday, August 1st, 2007 AT 5:14 PM

KB42

MEMBER
13 POSTS

[quote="Cly"]I would lean towards the hydraulic side of the trans. More than likely an input clutch seal has failed. That will give you no reverse or drive. Can't say that I ever pushed one to see if second gear would kick in at higher speed tho.

It will.
If your a DIY & have the needed tools, hoist to lift up the van body, and a table with wheels, and 19mm sockets and ambition, then you can attempt transmission replacement.
I am doing one for my own, and it is taking about 4 days to complete it, and lots of work. You WILL want a book, as you will have to disconnect, drain, and reconnect a lot of wiring, throttle body, fuel system etc etc, will have to take out all front end, bumper etc, radiator, will have to either remove the A/C compressor or unhook it and recharge it later, it's a major task, and best left to a mechanic.
The only thing I did find is that you DON'T have to remove the C/V axle nuts, you actually end up dropping out the entire hubs with the subframe and can remove them from the transmission, and reinsert them without having to remove the axles completely.
You do have to disconnect the steering knuckle before dropping out the subframe however.
$300.00 or more should get you a used transmission along with torque convertor, which is also what can fail along with the transmission. Trust me there is no quick fix. Lucas doctor won't help in the long run.
Don't waste money on that stuff, it might get you by for a very short time but eventually you will completely burn out the transmission.

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Sunday, September 16th, 2007 AT 10:58 PM