Skip the auto shop - Our mechanics make house calls

Q: Engine has difficulty starting

asked by on

I have a vehicle with difficulty starting. Almost every time I turn the car on, the engine has problems. The car starts but only goes to 500-750 RPMs. It seems as if it is going to stall. It goes to normal 1000 RPM when I rev it up 2500 RPMs. Other than that, the engine has troubles starting. I would hear the starter when I turn the key, but the car just dies. What might be the cause of this?

A: If the vehicle starts you can essentially r...

If the vehicle starts you can essentially rule out a problem with the starting or charging system. So, forget the starter. There are numerous potential causes for the symptoms you are experiencing, but one thing that comes to mind is the idle air control valve (IAC).

Engines such as yours are well known for having dirty IACs. Sometimes simply cleaning the IAC solves the problem. IAC operation is pretty simple; the powertrain control module (PCM) receives inputs from various sensors mounted throughout the vehicle. It then uses this information to control the IAC and regulate idle. To accomplish this, the IAC opens a small bypass circuit that allows air to bypass the throttle. The best way to determine if this is actually the problem is to have a professional inspect your starting issue in person. The team at YourMechanic is an excellent option since we come to you.

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: Radio not working - 2003 Lexus LS430

It would seem the issue is a connection problem. If the wire from the windshield to the radio has been cut or pinched, it could be a short causing your radio to not function at all. There are ways to...

Q: Where is the theft system located

The theft system of your vehicle is usually located in the steering column. This is due to the fact that the ignition switch is in this location and one of the major functions of the security system is to disable...

Q: Tire noise while driving

Several things come to mind. Have the tires always been noisy? did it happen gradually, or all of a sudden? Some tires are noisy even when new. Winter tires or aggressive all-seasons will be louder than a touring tire. Poor...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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.