Skip the auto shop - Our mechanics make house calls

Q: transmission input shaft

asked by on

so I replaced the fluid pump on a 700r4 4x4 transmission and I wrapped it all up had everything put back right and when I go to manually shift with my hand the input shaft doesn't want to spin. before the shaft was spinning one way but difficult the opposite way. but once thevery pump is on it won't spin at all. is this normal ? or what could be the problem
My car has an automatic transmission.

Hello, when you removed the pump you may have relocated clutch plates in the input housing. These plates must align with a hub assembly. What happens is that the pump puts pressure on the housing because there is no end play. No endplay and the input shaft will not rotate. The clutch plates now are damaged and need to be replaced.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Small rock cracks windshield while driving on the interstate

Hi! Yes it's very possible to have an aftermarket windshield installed in your car, though you should make sure to verify with the glass installer that it is still a quality windshield. Often times aftermarket parts can be very high...

Q: front passenger wheel locked up.

Hey there, thanks for writing in about your 1989 Chevrolet K1500. You say it may be the axle so I guessed you have a 4x4 vehicle. You will need to isolate the axle to see if the wheel bearing in...

Q: Loud knocking noise while driving

Hello. If the noise is occurring when driving and going over bumps, then it may be a suspension part. Most of the time on this car, it is caused by a failing suspension strut. The struts will fail and not...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.