Skip the auto shop - Our mechanics make house calls

Q: Why is newly replaced brake booster making a whistling noise and brake pedal staying depressed?

asked by on

OK I replaced the brake booster and now when I push brake pedal down it sticks and a whistling sound comes from somewhere around the booster itself.

A: Hello, it sounds like you have a bad run wi...

Hello, it sounds like you have a bad run with parts. That booster is leaking internally. It has nothing to do with installation. You need to get another booster, may be a different brand. Make sure your vacuum hose to booster is in good shape.

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: i just installed my starter but truck will not start

Hi there Assuming that the starter itself was the reason why your Tahoe wouldn't start prior to the replacement, it's possible that either the starter is not properly attached to the motor, the starter is not fully engaging with the...

Q: My car is skipping - do I need new spark plug wires?

Old or faulty spark plug wires can definitely be a cause for the engine to misfire, however there are numerous other reasons that may also cause this to happen. Generally, misfires are caused by either a spark or fuel issue...

Q: Brake pedal to floor; two car lengths to stop car

Hello. This diagnosis sounds correct. There is clearly a failed brake hydraulic component and safety issue. Consult your Owners Manual to determine if your vehicle is still under warranty. If so, the vehicle should be towed to the dealer. If...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...