Could this be the cause of the trans pump failure?

Blackened300a

Blackened300a

Sinister with style
Since I got my car back from having the engine replaced I been chasing a slight vibration at idle.
Is it possible that they bolted the engine to the tranny with the convertor unseated and that was the vibration which led to the pump failure? If so I would assume they would have to cover the damages?

Also the pump whined but the trans shifted fine til about 3 blocks from my house. I plan to have it towed to the shop for the repair. Would I just need a pump replacement or is it possible that I destroyed the internals of the tranny as well?

Thanks for any info.
 
Paul ... sorry to hear about your problems on the way home from MV8. Glad the tranny was able to get you home and hope that the repair doesn't sideline you for too long.

It was great to see you again. Your newest "squeeze" is a definite keeper. Seems like she enjoyed her trip and blended in very well at all the events. She even bested my time in the NASCAR simulator by ...... ALOT !!!!
 
From my experience, if the converter is not seated in the pump you get tranny failure in a very short time / miles. Maybe the pump just failed.
 
fastblackmerc said:
From my experience, if the converter is not seated in the pump you get tranny failure in a very short time / miles. Maybe the pump just failed.
Click to expand...

I been complaining about this vibration for a while now and I'm thinking the convertor wasn't seated either. I have less then 2K miles since the install.
 
Paul, that sucks, hope it turns out to be a small repair bill. I guess one way to tell for sure if that was the cause of the noise was will be after it's fixed. Have you tried moving it since it has cooled down after getting home?
 
CBT said:
Paul, that sucks, hope it turns out to be a small repair bill. I guess one way to tell for sure if that was the cause of the noise was will be after it's fixed. Have you tried moving it since it has cooled down after getting home?
Click to expand...

If it is the converter not being seated, I'm not paying anything. I haven't touched the car yet. I have a tow truck coming around 11 to pick it up and the shop knows about what happened.
They are going to look at it right away. Ill have details later.
 
fastblackmerc said:
Tranny install? If so is it under warranty?
Click to expand...

Engine install. However the trans was removed recently to replace the flexplate which I noticed wobbled a little. I have 12K warranty on the motor but if this caused the tranny to fail then it should also be taken care of.
 
If the converter isn't fully seated you pretty much damage the pump when you tighten the bolts on the bell housing. When you drop the trans, unbolt the nuts from the flywheel so the trans and TC come out together. Then you can see if it wasn't seated properly. It should be: spin, push, thunk (1/2 seat) spin more (thunk again - full seat) sinks in fully. Then you know it's seated -- it goes in twice.
 
Blackened300a said:
Engine install. However the trans was removed recently to replace the flexplate which I noticed wobbled a little. I have 12K warranty on the motor but if this caused the tranny to fail then it should also be taken care of.
Click to expand...

Good Luck!

Hope it works out for you.
 
babbage said:
If the converter isn't fully seated you pretty much damage the pump when you tighten the bolts on the bell housing. When you drop the trans, unbolt the nuts from the flywheel so the trans and TC come out together. Then you can see if it wasn't seated properly. It should be: spin, push, thunk (1/2 seat) spin more (thunk again - full seat) sinks in fully. Then you know it's seated -- it goes in twice.
Click to expand...

Would you still be able to bolt the tranny up? I would think that if its not seated it would stick out too far for the motor to seat.
 
Sorry to hear about this Paul.

I don't have enough hands on experience w/these transmissions but I know the C-4 would not bolt flush to the motor unless the converter was all the way in - same w/the Chrysler 727.

Hope this gets fixed to your satisfaction!
 
Blackened300a said:
Would you still be able to bolt the tranny up? I would think that if its not seated it would stick out too far for the motor to seat.
Click to expand...

Yep you'd be able to get it really close about 1/4 to 1/8 of an inch, but it wouldn't be flush with the engine. Then you'd just use the bolts from the tranny bellhousing to close the gap and force the trans flush with the engine, crushing the pump in the process. Harder to notice the damage turn by turn.
 
babbage said:
It should be: spin, push, thunk (1/2 seat) spin more (thunk again - full seat) sinks in fully. Then you know it's seated -- it goes in twice.
Click to expand...


IDK but I was always told 3 "thunks" to fully seat the converter on these 4r transmissions......?
 
You must log in or register to reply here.
Back
Top