torque converter replacement questions
Thread Starter
Joined: Jun 2005
Posts: 1,245
Likes: 8
From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
torque converter replacement questions
a couple weeks ago i pulled my 700r4 (new maybe 2000 miles on it) to swap to a higher stall converter. before i pulled it the tranny never leaked at all. so i pulled the tranny and it sat on a tranny jack for 5 or 6 days with the stock converter sitting on it. well my naext day off i went back and swapped converters then through then tranny back in. ever since then i have been leaking fluid. it puddles under the cooler lines, probably just not tight enough. but the other puddle is under where the torque converter is. it is just a small puddle. nothing huge. now my first question...i didnt replace the front pump seal since it wasnt leaking before. is it required to change that seal everytime you pull the converter? second, since the converter was putting all its weight just on the seal for a couple days, is it possible that it developed a flat spot and it will even out after a little bit of driving? i am not wanting to pull the tranny again if i dont have to. thanks for the help!!!
Junior Member
Joined: Nov 2008
Posts: 47
Likes: 0
From: Pa.
Car: 87 Z28
Engine: LB9
Transmission: 4L60
Axle/Gears: 2:73
Re: torque converter replacement questions
Does it leak when it's running or after sitting engine off. If when running may be the pump seal. If it leaks when sitting over night you may have damages the dip stick seal or the TV cable O ring. Hope this helps
Re: torque converter replacement questions
the spring inside the front seal could be messed up or have fallen out. part of the seal could have folded in too, this happened on my timing cover's crank seal and i had problems
Thread Starter
Joined: Jun 2005
Posts: 1,245
Likes: 8
From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Re: torque converter replacement questions
i checked it for leaks with the engine running in neutral and in gear(e-brake pulled) and it wont leak. it leaks after sitting. i will have to check on those 2 seals
Thread Starter
Joined: Jun 2005
Posts: 1,245
Likes: 8
From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Re: torque converter replacement questions
anyone else have any ideas??
Junior Member
Joined: Nov 2008
Posts: 47
Likes: 0
From: Pa.
Car: 87 Z28
Engine: LB9
Transmission: 4L60
Axle/Gears: 2:73
Re: torque converter replacement questions
Spray some foot powder around the area of the dipstick seal and the TV cable if it's leaking the powder will turn pink after it's exposed to the fluid. Did I understand you to say you didn't remove the pump? You may all so have a leak at the pump O ring try the powder trick any place you suspect the source to be . If it leaks while sitting I doubt the front pump seal is bad. There is no pressure when not running.
Thread Starter
Joined: Jun 2005
Posts: 1,245
Likes: 8
From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Re: torque converter replacement questions
thats a really good idea. i will have to do that tomorrow. the car will be on a lift since i am redoing the exhaust.
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