Skip the auto shop - Our mechanics make house calls

Q: High idle and car won't stop

asked by on

My car is idling between 5,000 and 6,000 RPMs, and it won't stop when I press the brake pedal. My airbag light is also on and my fuel gauge is not correct. My car did suffer some water damage in the past.

A: Hello. This sounds like it may be a faulty ...

Hello. This sounds like it may be a faulty Mass Air Flow sensor or a throttle arm that could be stuck. It could also be an air leak. A good way to test for leaks is to spray starting fluid on the gaskets. After you do that, listen for any changes in the RPMs. I suggest having a certified mechanic come out inspect your engine's high idle and braking issue. I would have these issues addressed immediately because there is serious risk involved when driving with dysfunctional brakes.

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・Save up to 30%

Get a quote

What others are asking

Q: A/C blowing hot air

Whether or not the refrigerant is low, it can be tested using a/c gauges. The a/c compressor doesn't need to be running to check system pressure, only to check operating system pressures. You can hook gauges up anytime and see...

Q: I was just wondering why my airbag light is on?

Hi there. From the description you have provided, the problems described with the seat belt chime and airbag light are unrelated. The seat belt chime module may have failed long before the airbag light came on. The cut wires at...

Q: Brake line is leaking

Hello, with brakes being one of the most important systems on a vehicle, the vehicle should not be driven until this is repaired. I assume you know approximately where the leak is since you know it on the right side....

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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.