Tranny leaking when parked
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Senior Member
Joined: Apr 2000
Posts: 788
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From: Wichita, KS
Car: 92' RS
Engine: LO3
Transmission: Probuilt 700R4
Axle/Gears: 3.70 9-bolt
Tranny leaking when parked
I replaced the transmission and when the car is running it does not leak but after it is parked, the next morning there is a half a quart of fluid on the floor. I have taken the pan off and reinstalled it and I cannot see how there is anyway it can be leaking there. Can the fluid be leaking from the fill tube if it is not fully seated? Will the fluid get that high when the car is off? Is the bolt that holds it accessable from the engine compartment or do I have to get at it from underneath?
Thanks
Thanks
Joined: Sep 2005
Posts: 27,893
Likes: 2,436
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Tranny leaking when parked
Yup, fill tube seal.
Yes the level gets that high when parked.... unless of course it's all already leaked out below it.
IIRC the bolt that holds the fill tube on is the upper bell housing bolt on the right side of the motor; probably easier to get to from underneath. You may find either that the seal got munged during install (happens alot), or that the tab that the bolt goes through is bent, and not holding the fill tube all the way down.
Yes the level gets that high when parked.... unless of course it's all already leaked out below it.
IIRC the bolt that holds the fill tube on is the upper bell housing bolt on the right side of the motor; probably easier to get to from underneath. You may find either that the seal got munged during install (happens alot), or that the tab that the bolt goes through is bent, and not holding the fill tube all the way down.
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Joined: Mar 2002
Posts: 4,812
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From: 62656
Car: 1991 S10 pickup 2700lbs
Engine: 4.3L Z TBI
Transmission: 700R4
Axle/Gears: 3.08 7.625"
Re: Tranny leaking when parked
it could be anything
jut becaus eits not leaking when its runnign doesn mean that it isnt when youre driving
youll ahve to get under the car with a rag and a light and wipe off tranny fluid and look for the leak
start with the tube seal yeah
could also be speedo carrier seal
front seal
rear seal
governer cover seal
probably not loose tranny line since you say it doesnt leak when running
youll just have to look and see
no one here can
good luck
jut becaus eits not leaking when its runnign doesn mean that it isnt when youre driving
youll ahve to get under the car with a rag and a light and wipe off tranny fluid and look for the leak
start with the tube seal yeah
could also be speedo carrier seal
front seal
rear seal
governer cover seal
probably not loose tranny line since you say it doesnt leak when running
youll just have to look and see
no one here can
good luck
Thread Starter
Senior Member
Joined: Apr 2000
Posts: 788
Likes: 0
From: Wichita, KS
Car: 92' RS
Engine: LO3
Transmission: Probuilt 700R4
Axle/Gears: 3.70 9-bolt
Re: Tranny leaking when parked
it could be anything
jut becaus eits not leaking when its runnign doesn mean that it isnt when youre driving
youll ahve to get under the car with a rag and a light and wipe off tranny fluid and look for the leak
start with the tube seal yeah
could also be speedo carrier seal
front seal
rear seal
governer cover seal
probably not loose tranny line since you say it doesnt leak when running
youll just have to look and see
no one here can
good luck
jut becaus eits not leaking when its runnign doesn mean that it isnt when youre driving
youll ahve to get under the car with a rag and a light and wipe off tranny fluid and look for the leak
start with the tube seal yeah
could also be speedo carrier seal
front seal
rear seal
governer cover seal
probably not loose tranny line since you say it doesnt leak when running
youll just have to look and see
no one here can
good luck
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or the TV cable seal is wrong/installed improper and will cause about the same leak. 
