primary pump
 

Reviewing the various documents to replace the primary pump.

My understanding is I must remove the front cover #8 to access the bolts #11 that hold the pump to the front cover correct?
So when I do this I should purchase and replace the #1 and #2 seals.

Is this as deep as I need to go with the tranny on the bench?

Will I need anything else here?

Never mind I reread the excellent post by WHunter and understand the procedure.

Thanks

Could the torque converter be at fault?

Actually, instead of pulling the cooler lines first, just start the car get under and see if the torque converter is even spinning....

The torque converter is attached to the flywheel. It will be moving at the speed of the engine.

Diving in and randomly changing parts is a bad idea. You need to do a pressure test.

Agreed.

I did remove the top trans cooler line, started the engine, moved the shift selector through the gate. No fluid, not a drop came out of the cooler line hose.

Mark

X2

Pressure test if you have the technology

Ya...I was just wondering if the flywheel bent somehow and got the TC stuck or the bolts sheered off however very unlikely...just was a quick and easy look.

Pump failure confirmed. It should fire out of there like no other regardless of shift selection.

Plan the removal! :)

Removal scheduled for tomorrow morning.

Mark

OK Got the G back and sure enough the primary pump was kaput. They pulled the tranny replaced the pump, all related seals and the pressure modulator (per my request). It now runs amazingly well!

Thanks for all the help.

Mark

Glad to hear :)

when the engine is shutoff half of the torque converter drains back to the pan due to gravity, if the pump is not working or the flexplate has broken or the bolts holding the torque converter have sheared off (they are mandatory to renew every time they are disturbed) the transmission will not work as the main pump doesnt work.

You will also see a high level on the dipstick. To test follow was ps2cho said, undo a cooler line and see if you get any fluid pumping from it as soon as the engine starts.

Thank you
 

I just wanted to post a big thank you to the contributors of this forum. I had this exact problem on my 94 e 320. I ordered a new flange from the dealer and am keeping my fingers crossed that the output shaft is ok. Thanks again:) for saving me an expensive trip to the transmission shop!

I have no grasp of the transmission systems but from expereince know that when overfilled the trans loses forward traction and will work in reverse. (95 E320) and lowering the fluid does not correct the overfill. It will still keep slipping..One must drain the fluid and then add back to the full level slowly with it running and parked. Then you are good again.. Very curious why if anyone cares to explain..