I am an ASE certified mechanic, but transmissions aren't my strong point. 96 Chevy 2wd pickup. extended cab, with a 4L60E
Transmission. Replaced front pump seal, because of leak. Leak came back after 15 minutes of driving. Torque converter snout
is clean and free of scratches. Fluid runs out of front seal when
vehicle is running, and pours out when you shut it off. Owner of
vehicle said trans has only 25,000 miles on it. Is there a "speedy
sleeve" or something I can do to get the leak stopped? HELP!!!!!!!
2006-08-08 20:16:34 · 4 answers · asked by race21 3 in Cars & Transportation ➔ Maintenance & Repairs
No Seal was installed properly, and wasn't damaged. I made sure of that, that one bit me in the *** about 12 years ago. Could there be an internal problem with the torque converter?
2006-08-08 20:31:39 · update #1
What about doing a line pressure check?Would that tell me anything?
2006-08-08 20:34:02 · update #2
It starts leaking right away, I am going to pull it today, and recheck everything. You know, I thought about a cracked weld on the converter after I had the tranny back in.
What about presures, anybody know about what they should be?
2006-08-09 06:18:20 · update #3
checking manufactures spec on pressure may/probably would help. Is there something in the vavle body diverting too much fluid to the converter(does it shift funny at all?) also one thing that isn't evey common but sometimes if the snout is too polished the seal never seats properly (some motors had that problem with rear mains), possibly roughing the surface up a bit will help seat it (scotch brite) I use the word rough very lightly. Also does the snout have a slight taper from previous wear? check with micrometer.
2006-08-08 21:22:04 · answer #1 · answered by Roy W 2 · 2⤊ 0⤋
I really think the seal was not installed properly also. That or you were given the wrong seal. I really doubt there is anything wrong with the torque converter... it is still rather young. You could check it for leaks but I doubt it. Have you check the transmission pump? Maybe a gasket is leaking there?
2006-08-09 07:05:00 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Sounds like maybe the seal was not properly installed or you got a dammaged seal. Automatic transmissions are really quite simple by design. Much easier to work on than manuals. I would get a trans. repair manual (available on DVD from TCI) and try replacing the seal again.
2006-08-09 03:25:27 · answer #3 · answered by wzzrd 5 · 0⤊ 0⤋
Is the vent plugged?
Are you sure the leak is from the front pump, or could it be from a cracked weld in the converter?
Are there any other leaks or symptoms?
How long does it take to start leaking?
2006-08-09 07:53:13 · answer #4 · answered by frank k 2 · 0⤊ 0⤋