Skip the auto shop - Our mechanics make house calls

Q: New Slave cylinder installed and the plunger keeps getting dislocated. Doesn't want to go back into the cylinder and the pedal is soft

asked by on

I just replaced the slave cylinder and when I pump the clutch, the plunger pops out if place. I'll force it back into the cylinder and a couple more pumps of the clutch and it pops out again. What am I doing wrong?

My car has 130000 miles.
My car has a manual transmission.

A: Hey there, it sounds as though the hydrauli...

Hey there, it sounds as though the hydraulic pressure is not bleeding back fully when you release the pedal. First you should check the clutch pedal and verify that there is free play when the pedal is released.

There should be almost 1/4 inch of free travel of the pedal before there is any movement of the piston in the master cylinder. If there is not, it could be that the pedal pushrod needs adjusting or that the pedal is not returning all of the way. The other possibility is that there is a restriction in the flexible hose that connects to the slave cylinder. That can cause a pressure build up in the slave. That can only be repaired by replacing the hose. If you still can’t get it working, consider having a professional inspect the clutch so that this can be repaired appropriately.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Can a bad bearing mess up the brakes and rotors in the front?

If the wheel bearing is defective, that will not damage the brake rotor or the brake assembly. However, when installing the new bearing, the factory procedure must be carefully adhered to. In particular, the hub retaining nut has to be...

Q: 2002 Chevrolet Cavalier not moving while in gear

An inspection of the linkage used to change gears, whether it be manual or automatic, should be carried out to find out of the linkage has been damaged or broken. There could be a problem with the PRNDL - which...

Q: Loud chirping from valvetrain

Hello, thank you for writing in. There are several causes for low compression. It was a great idea to test all cylinders. With only having low compression in one cylinder, the issue is likely an exhaust valve. The vehicle should...

Related articles

P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
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.