Skip the auto shop - Our mechanics make house calls

Q: Car accelarates to 3000 rpm in park or neutral.

asked by on

Once my car hets warm, the rpm gauge will accelerate to 3000 rpm. How do i fix this?

My car has 205000 miles.
My car has an automatic transmission.

A: The throttle position sensor (TPS) is most ...

The throttle position sensor (TPS) is most likely failing. Air leaks in the intake can also generate a high idle, but not usually this high. If you need to have this checked, have a local mechanic, like one from YourMechanic, diagnose the high idle in person so this problem can 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: Trouble starting unless I prime the fuel pump, turn off key and then prime again and start it.

The most common cause of the fuel system not holding pressure up to the injectors is the fuel pump inside the fuel tank. The fuel pump has a check valve built into it that is supposed to keep pressure to...

Q: I drove my car about 50 miles without the oil cap it started rattling and cut off and now it wont crank

Having driven that far with no oil cap, it is likely that the engine oil level ran low enough to cause engine damage, possible seizing the engine. If that is what happened, adding oil will not help once the engine...

Q: Sometimes my car accelerates very slowly but the RPM rises

Hello. I would recommend first checking the connections to the MAF sensor and cleaning it as sometimes they will get dirty and cause this kind of problem. If this does not work you may need to have it replaced. If...

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...
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...
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...