Skip the auto shop - Our mechanics make house calls

Q: Engine wants to bog out on idle

asked by on

When I start it the rpms start at about 300rpms when I give it gas to get them back up it revs but wants to big out and when I let off it goes close to dying. About 5 of driving like that it goes back to normal running fine.

My car has 130000 miles.
My car has a manual transmission.

Hello. It sounds like you have an issue with your idle air control valve, weak fuel pressure, or carbon buildup blocking your throttle body. More than likely it is the idle air control valve. It is meant to regulate engine RPMs according to the driver’s demands. For example if you are stopping at a light the idle air control valves job is to make sure the engine idle ranges at about 700 RPM to keep the engine from cutting off. They’re in contact with a lot of gases and even coolant so they may get clogged up and be unable to do their job. I suggest that a technician inspect the your idle air control which should help you determine the cause of your idle fluctuation. You can find more information on your idle control valve here https://www.yourmechanic.com/article/how-to-check-an-idle-air-control-valve-by-jerel-lawrence

You are also able to find a technician and schedule an appointment for your vehicle by clicking this link https://www.yourmechanic.com/services/idle-control-valve-replacement

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!
  1. Home
  2. Questions
  3. Engine wants to bog out on idle

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: I change the dayco timing component on a 2006 Chevrolet Aveo and naw it won't start what can bee the course

With one exception, discussed below toward the end, you want to consider the simplest possibilities first. one of which is that the battery is discharged or faulty. The battery should be load tested. If the battery passes a load test...

Q: Codes p0101, p0131, p0137, p0151 & p0327 I guess I'm asking would replacing the ECM solve the problem? 2002 Chevrolet Blazer

Hello - the codes you list (besides the P0101 for the MAF) reference problems with the oxygen sensors and a knock sensor (P0327) for your engine. These are normal higher mileage maintenance items, and do NOT require replacing the ECU....

Q: We need two transmission solenoids replaced

Hi there. In most cases, when a transmission solenoid is faulty, corresponding solenoids can fail shortly after. In regards to cost for solenoid replacement, you'll need to fill out a quote request, so we can gather the right information from...

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...
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.