Skip the auto shop - Our mechanics make house calls

Q: Car starts but won't run.

asked by on

My car starts but won't run. Why?

If your engine starts but won’t stay running (idling) the problem is most likely a faulty idle air control (IAC) motor. The IAC opens and closes to maintain engine idle, if this component goes out, the engine will keep stalling. A qualified technician, like the ones at YourMechanic, can help you with problem.

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: Car won't start even with parts replacement.

If you have a 1964 Cadi and you have a coil overheating then you may have an issue with a shorted wire in the distributor that comes from the coil and goes to the points inside the distributor. You need...

Q: Changed out the alternator and battery. Car will not start without a jump.

This may be a sign of a failing voltage regulator. This is a unit that regulates the charging of the battery by the alternator. Often times this will result in the alternator allowing too much power to be delivered to...

Q: Won't blow heat on the inside

You should start and run engine for at least 5 minutes at 2000 rpms to warm the engine up to full operating temperature. Set heater on medium blower speed and measure vent temperature as temperature is increased with controls. If...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...