Front pump seal leaking, advice?
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Supreme Member
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Joined: Aug 2009
Posts: 3,670
Likes: 3
From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Front pump seal leaking, advice?
the front pump seal on my tranny is starting to leak after i replaced the filter and pan gasket, shift indicatior cable, and replaced the transmission lines. so what advice can you guys give me on this front pump seal? iv never done anything like this before so i will be learning, also what else should i replace while i have the transmission out from under the car? i do NOT want to get back under there for quite some time and i dont want anymore leaks. help please
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Joined: Oct 2008
Posts: 809
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From: Siloam Springs AR.
Car: 1998 Trans/Am, 1989 RS Camaro
Engine: LS1, LQ9 6.0
Transmission: 4L60E, 4L60E
Axle/Gears: 2.73, 2.73
Re: Front pump seal leaking, advice?
Without opening it up there isnt much you can do. Front, rear seals on the tranny and a rear seal on the engine.
Thread Starter
Supreme Member
iTrader: (6)
Joined: Aug 2009
Posts: 3,670
Likes: 3
From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: Front pump seal leaking, advice?
Well I replaced the front pump seal, tranny lines, Pan gasket and filter, and dip stick tube seal and I still have a leak near the front of the tranny.....
Senior Member
Joined: Mar 2003
Posts: 851
Likes: 3
From: vacaville,ca
Car: 1988 camaro z28,1997 camaro lt1
Engine: 355 afr 195 heads,tpis big mouth
Transmission: 700r-4 built by me 3-4 z pack
Axle/Gears: 3.42
Re: Front pump seal leaking, advice?
99 percent of the time its the front pump bushing that is behind the seal that the torque converter ride on.
Joined: Jul 2000
Posts: 6,521
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From: Aridzona
Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
Re: Front pump seal leaking, advice?
If you don't want to go under there for quite some time, making sure the snout of the converter and the pump bushing are tip-top shape is necessary.
Thread Starter
Supreme Member
iTrader: (6)
Joined: Aug 2009
Posts: 3,670
Likes: 3
From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: Front pump seal leaking, advice?
It's leaking at thr bottom line again.. I just replaced those because they were leaking
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