4r100 line pressure issues. RESOLVED.
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Tuned
Joined: Dec 2007
Posts: 338
Likes: 25
From: Hooterville, WI
4r100 line pressure issues. RESOLVED.
I've read as many threads on 4r100 line pressure as i can find. I'm pretty sure i have a bad pump but im looking for confirmation.
P - 50psi at idle drops to 0 after running for about 2 min. Shut off wait 30 sec and restart, 50psi again that drops to 0.
R - no pressure
N - Same as P
D - no pressure
no pressure in remaining forward gears
P - 50psi at idle drops to 0 after running for about 2 min. Shut off wait 30 sec and restart, 50psi again that drops to 0.
R - no pressure
N - Same as P
D - no pressure
no pressure in remaining forward gears
Last edited by fivonut; Nov 3, 2024 at 09:20 PM.
Thread Starter
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Tuned
Joined: Dec 2007
Posts: 338
Likes: 25
From: Hooterville, WI
Dropped pan today and noticed the filter was OEM. On a whim i bought a new filter. $60 in filter and fluid later pressures are nice and steady and all gears working.
Whoda thunk 391000 would plug a trans filter!!!
Whoda thunk 391000 would plug a trans filter!!!
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