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Old 11-14-2021, 06:20 PM   #1
Radtap
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Default M46 leaking near OD unit

Recently did the fluid on my transmission and it seems to be leaking out of somewhere on the OD unit aswell as the solenoid possibly. Replaced the strainer gasket and its not leaking from the gasket. Just seemingly started to leak over last week. Honestly haven't had the opportunity to shift into OD yet so honestly don't know if it works. Doing clutch later this month so I'll be able to take a better look at it once its out of the car
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Old 11-15-2021, 06:07 PM   #2
dl242gt
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Get some of the seals and gaskets while doing the clutch job and reseal the overdrive. I think spock has an overdrive thread about sealing it up.
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Old 11-15-2021, 06:26 PM   #3
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I’m doing shifter bushings while I have it out of the car, any other jobs I should probably take care of while I’m in there?
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Old 11-15-2021, 09:11 PM   #4
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That is the time to make sure the electrical switches/connections are all good and wiring harness is in good shape.
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Old 11-16-2021, 11:33 PM   #5
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I had this issue as well. At first, I thought it was the OD sump gasket and replaced that several times. After losing nearly all of my transmission fluid several times, I discovered, via a parts diagram, that I was missing the sealing washer for the solenoid.

Does your solenoid have a sealing washer? If not, get one.
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Old 11-16-2021, 11:34 PM   #6
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Quote:
Originally Posted by Radtap View Post
Iím doing shifter bushings while I have it out of the car, any other jobs I should probably take care of while Iím in there?
Check the reverse pull rod. Might want to just replace it to avoid future annoyance.
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Old 11-17-2021, 10:21 PM   #7
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Looks like my OD does not work, took it to the top of 4th, pushed the clutch in, flipped the switch and I’m still in 4th. Bad solenoid? Never really done much to transmissions other than clutches and fluids so I don’t really understand how it all works together here
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Old 11-18-2021, 10:21 PM   #8
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Start your troubleshooting journey with listening for the solenoid "thunk."

Key on position, but engine off (so you can hear the thunk).

Shift into 4th, lean your head out around the (open) door sill while energizing/deenergizing the OD switch. Should be able to hear the solenoid thunk in and out.
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