1996 Automatic, I made it worse. Help Please
Thread Starter
Le Mans Master
Joined: Mar 2016
Posts: 9,171
Likes: 4,014
From: 2019 CMG Z06/ZR1
Have to ask, could it be the full synthetic AC Delco Dex 6 fluid I’m using? My understanding is that the dex6 is the replacement for dex3. I’m sure this is not the issue, but just wondering.
Drifting
Joined: Apr 2020
Posts: 1,925
Likes: 610
From: Orange, CA
Having read the service manual for the '95 4L60E (which is the same as the '96), I hate to say it, but it sounds like your reverse input clutch is done. It's the one thing that only affects reverse and doesn't affect any other gear in any way. It's also pointed out in the images from the service manual I posted earlier.
It would behoove you to find a reputable transmission shop and have them inspect and repair it. Don't bother with chains like AAMCO or whatever. These turbo-hydramatic transmissions have been around since the stone ages, so there are plenty of guys who've been doing independent repair for decades who know them inside and out and don't charge an arm and a leg. You'll get better quality of work and save money at the same time.
Best of luck.
It would behoove you to find a reputable transmission shop and have them inspect and repair it. Don't bother with chains like AAMCO or whatever. These turbo-hydramatic transmissions have been around since the stone ages, so there are plenty of guys who've been doing independent repair for decades who know them inside and out and don't charge an arm and a leg. You'll get better quality of work and save money at the same time.
Best of luck.
Race Director
Joined: Jan 2012
Posts: 17,062
Likes: 166
From: United States
Taking the valve body isnt hard. Its a bit messy, but if on a lift, life is easier, than on the garage floor on your back.
If someone can do a pressure check, which is easy BTW, then that will tell you quite a bit.
As far as fluid, I used what GM recommended always for my 700R4/4L60/E's
If someone can do a pressure check, which is easy BTW, then that will tell you quite a bit.
As far as fluid, I used what GM recommended always for my 700R4/4L60/E's
Race Director
Joined: Jan 2012
Posts: 17,062
Likes: 166
From: United States
I agree with what your saying, but that valve is in the valve body.. He has to take the pan off to get to it. If the pressure test shows its not being boosted, it has to be taken out, correct?
Race Director
Joined: Jan 2012
Posts: 17,062
Likes: 166
From: United States
I dont know what happened, but an entire post from Ihatebarkingdogs was erased at 115pm?
He was talking about the reverse abuse valve is the only valve associated with this if pressure isnt being boosted, of which a pressure test may show.
Anyways, it was great knowledge, dont know why it was taken off.
He was talking about the reverse abuse valve is the only valve associated with this if pressure isnt being boosted, of which a pressure test may show.
Anyways, it was great knowledge, dont know why it was taken off.
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Thread Starter
Le Mans Master
Joined: Mar 2016
Posts: 9,171
Likes: 4,014
From: 2019 CMG Z06/ZR1
There are lots of videos on YouTube on the 4L60. I like the video by Precision Transmissions.
https://www.youtube.com/watch?v=_5lRls7UvzQ
https://www.youtube.com/watch?v=_5lRls7UvzQ
Starting to have some second thoughts here. Bought a 24 yr old car that sat and sat, only 45k miles in 24 yrs. My plan was to drive it as long as there's no salt on the ground, so maybe 8 months out of the year. Now I'm thinking what other brittle seal or part will go to **** next? Not interested, nor have the time for rear mains, head gaskets, etc. Maybe fix the trans, tuck my tail between my legs and sell this thing. Take the loss now as opposed to death by a thousand cuts. Not sure yet, but not a good way to think only a month into ownership.
Race Director
Joined: Jan 2012
Posts: 17,062
Likes: 166
From: United States
My 93 has 154000 miles. But, it does sit for many months on end.. When it gets driven something always breaks. Its because it doesnt get driven, and it is modified slightly, lol...
But, a good transmission shop , an honest one, should be able to get you an idea of the problem.
Since I have pulled this transmission out times, 4L60, and done the valve body for different shift kits, till this last one was completely built right.
Its not hard, and its messy, but, if you a driver, let the fluid drip for a couple days, into a pan, then take the valve body off, and get it repaired or put another one in and sell the old one.
But, a good transmission shop , an honest one, should be able to get you an idea of the problem.
Since I have pulled this transmission out times, 4L60, and done the valve body for different shift kits, till this last one was completely built right.
Its not hard, and its messy, but, if you a driver, let the fluid drip for a couple days, into a pan, then take the valve body off, and get it repaired or put another one in and sell the old one.