Q: I am replacing my power brakes booster and need some advice about removing the power unit from the bell crank.

asked by on

Hello, I am replacing my power brakes booster and have a question about the process. My Chilton's manual says you need to "unbolt the power unit bell crank at the dash panel and remove the power unit and bellcrank as an assembly". My question is why cant you just remove the power unit from the bellcrank without having to unbolt and remove the entire unit as an assembly.

Thanks, JK

My car has 160000 miles.
My car has a manual transmission.

Hi there. When removing the brake booster from a vehicle, you will need to remove the master cylinder and cap off the hydraulic lines. Then go in the cab and remove the pin from the bell crank and unbolt the 4 bolts that hold the booster on. Then remove the booster. Do the opposite to install the booster. If the bell crank pin had a cotter pin to secure it, make sure that you use a new cotter pin. If you need further assistance with removing and installing a brake booster in your vehicle, then seek out a professional, such as one from Your Mechanic, to help you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. I am replacing my power brakes booster and need some advice about removing the power unit from the bell crank.

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: Shutting off and difficult startup - 1978 Jeep CJ5

Hey there, thanks for writing in. It sounds like you may have a large vacuum leak. Ensure the PCV system is hooked up correctly and that there are no broken or damaged vacuum lines. A smoke check of the induction...

Q: Q: Brakes

Hello. You could have one issue or multiple issues that together are causing this fault. Brakes are of course very critical and in the event that the problem is due to failed, or failing, seals in the master cylinder (underhood),...

Q: hard pedal, no brake action or fluid with engine on or off.

If the brake system was working before and now the brake pedal is hard and the front calipers are not moving, then the brake booster has failed (which is the hissing sound that you are hearing) and there seems to...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
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.