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Transmissions and Rear Ends Three on the tree or four in the floor? Shift it all here.

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  #1  
Old May 21st, 2019, 09:54 PM
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Default Hydramatic Repairs

Yesterday I think the 4 spd. Hydramatic gave up the ghost.....was trying to get out of my subd and it just barley moved. I checked the fluid before it leave the garage and it full, the filter was changed and cleaned about 1500 miles back. Anything else I can check before send it to the shop? I did notice a burned smell when I got back in the garage........

Go figure, it was the onlt part I did not rebuild.....

Pointers would be helfull. I have an old time trans shop that knows what a hydramatic in, so I can have it rebuilt.

So much for cruising this summer.....
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Old May 22nd, 2019, 01:14 AM
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Default Re: Hydramatic Repairs

Did the transmission fluid turn brown in color?
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Old May 22nd, 2019, 12:53 PM
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Default Re: Hydramatic Repairs

I will check, I have not had time in the past three days with work.
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Old May 22nd, 2019, 10:50 PM
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Default Re: Hydramatic Repairs

Sound like the overrunning clutch in the torque converter not working. This happen to me. It was very slow to get started. Once it was moving about 30 mph it operated properly.

Inside the torque converter the overrunning clutch (sprag clutch) outer ring had came loose from the housing. You lose torque multiplication and it is now just a fluid coupler (very inefficient).
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Old May 23rd, 2019, 01:31 AM
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Default Re: Hydramatic Repairs

Jake, go to the fatsco transmission parts website to get an exploded view of your transmission. They make many of the needed repair parts for that single range hydramatic.
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Old May 23rd, 2019, 02:01 PM
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Default Re: Hydramatic Repairs

Will Do, Thank You.

Jake
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Old May 24th, 2019, 04:52 PM
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Default Re: Hydramatic Repairs

Ok, I had time to check the fluid amd it is still pin. bUT for some reason it is now way over the full mark. I never leave the garage with out check levels as I did on Monday. The level was exactly at the full mark.

Jake
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Old May 25th, 2019, 03:27 PM
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Default Re: Hydramatic Repairs

i dont know much about hydramatic's, do you check fluid with engine running?
on other transmission's if the fluid level does not drop when you start the engine, it means that the pump is not turning. could be the pump drive gear, or torque converter?
Rick
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Old May 26th, 2019, 01:17 PM
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Default Re: Hydramatic Repairs

Hi Rick,

Yes you have to check the fluid while the engine is at idle. On Tuesday, I meet with the shop that has exp. With Hydramatics and he'll give an estimate on tripping the trans, repairs and time schedule.

I jave no real idea on how may miles is on the trans and frankly I should have had it rebuilt before I put it in the truck back in 2010.

A full rebuild kit cost $350 from Fatsco, so it will be worth it.
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Old May 26th, 2019, 03:24 PM
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Default Re: Hydramatic Repairs

I found this pdf on the Hydramatic Transmission, in case anyone is interested.
https://4door.com/manuals/cadillac/1...ansmission.pdf
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