According to my tci box im not getting any line pressure when the car is running No gear works. Tranny is full. Is there anything i can test or is the pump just mechanical and it failed? Drop the pan anything

Dont know if this matters or helps cause pump failer. What i was doing before problem:
Lanched the car on the brake. Made a pass through 2nd then lifted. Car pulled normal through second then i put it back into overdrive to cruise and the problem was there

thanks

 

Yes, if you're getting no line pressure then it's most likely a pump problem.

Frank
CPT

 

thanks for the reply. Yeah i just pulled the cooler line and no fluid at idle. Are the pumps on the 4l80 something that i can get to by pulling the front cover off or does the trans have to come apart

thanks

 

The transmission has to come out and come apart. Gee, I thought all you guys told me these 4L80E's never fail?

Frank
CPT