Oil leak.

Well I pulled it again. Replaced the torque converter. Reinstalled and still leaking.. with the motor running I was watching the flex plate move a 1/4” not sure what’s causing it. That is where the rattle I’ve been hearing is coming from. I tried to pry on the harmonic balancer see if there was play in the crankshaft but there isn’t. I’m gonna pull it again check the flex plate for cracks. Or warpage. Think with the bell housing being busted it might have hurt it. Who knows.
 
You were supposed to check that on the first seal install! If there is no end play from the front than you have either a broken flex plate or a broken crank.
 
Well the flex plate is all busted up. That was a hard lesson to learn. I guess the vibrations is causing the front pump seal to leak.
 
You should also check the front pump bushing for wear.
 
How would I do that? I had it apart but everything looked good I wanted to put a new pump on it but parts stores don’t have one in stock I’d have to order online
 
But withe new tc and seal it leaked again. The uncontrolled movement may have put a additional load on the bushing from the tc input shaft.
 
At least a visual check, you might be able to measure it with the seal removed.
 
Well after taking the pump back off and inspecting the bushing. The bushing is fine. The pump housing behind the front pump seal is scarred reall bad it has grooves in it on the sides. I don’t know if it would be fine or not. I’m gonna go ahead and pick up another pump hopefully around this area
 
Dang that's pretty good pulling that trans out so many times.

So you were able to get a new pump?

My trans is showing signs of needing a pump I think.

It makes a whirring noise in drive and reverse but not in park or neutral or weirdly when the TCC is engaged. I don't know what it is. Shifts fine except for the whine. Been doing it for months now. It's my daily driver so I just keep rolling it.
 
No I actually found a used pump from dead Jeep parts it was in good shape so I installed it. I figure they don’t wear out too often mine had grooves in it on the inside so I went ahead and replaced it. Lol yeah I hope I don’t have to do all that again
 
That filter screen could be dirty mine was so gummed up I’m surprised I didn’t burn the transmission up. Might pull the pan and check the filter and magnet for shavings. And clean it.
 
Bmfinney said:
After working on it for the past week. I replaced the rear seal and oil pan gasket and oil pump. I went ahead and ordered some tracer dye. I think me overfilling it my not have been the problem. I’m starting to think it’s the front input shaft seal on the transmission. I know for certain now that nothing above the oil pan is leaking. I went ahead and checked the level of automatic transmission fluid and it is dry that’s with the motor running. If it is the fluid is super dirty. But.. I have a knock that sounds like a rod knock at the rear of the motor when idling I’m gonna pull the oil pan off and check the rear connecting rod bearings but might be a dumb question could a torque converter failure cause a knock. I’ll know more when I get the dye. There is oil pressure for certain not sure how much because it has a dummy guage on it. But I went ahead and replaced the oil pump but it was doing it before hand. I did check the the clearance between the rod cap and the journals of the crank with a feeler guage while the pan was off and they where still within spec.
Well this dang transmission leak is really pissing me off. I put a new seal in it. Pulled the pan cleaned it put everything back together and still leaking.. Gonna have to pull it again. I guess I’m gonna replace the pump and torque converter next. It’s not as bad as it was. When I pulled it the bell housing was all busted up. That’s another thing I replaced. After running it awhile with new fluid it’s back to being dark brown metallic color. The transmission shifted fine I never had problems with it before.
Tesla mechanic
Click to expand...
Yes, overfilling the oil can increase pressure and potentially blow out the rear main seal. It’s possible that the excess oil caused the leak. However, it’s also worth checking other areas for leaks, as the rear main seal might not be the only culprit.
 
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