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: Headlight leveling system on

The vehicle uses the headlight leveling system to make sure the vehicle's headlights shine as far and as safely as possible. When a fault occurs, you will see the check headlight light. A few different faults can cause this, such...

Q: Changed 02 sensor still code keeps coming back an truck running sluggish

A code to an O2 sensor can mean the sensor is having a problem or the sensor is telling you that there is a problem with the fuel control system. Depending on the code received your engine is either running...

Q: Muffler hanging from bottom of vehicle.

I recommend having a qualified mechanic, like one from YourMechanic, replace your severed exhaust pipe. The exhaust may have also damaged the manifolds of the engine and caused wiring damage to the exhaust sensors. The exhaust systems on these vehicles...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.