Q: Q: Rough idling during cold starts

asked by on

When I start my SUV in the mornings, it idles for about 30 seconds before sounding normal. However, if I don't wait a while before driving, when I'm sitting at a red light, the idling drops and I have to go into neutral in order to rev it up. My dealership has done regular maintenance, but the problem still exists. What can I do to get this fixed?

The vehicle will have to have the throttle body and idle air control valve checked to see if it needs to be cleaned. Also, the engine will need to be checked for any vacuum leaks when the engine is cold.

Once these are checked, then a diagnosis can be done. You should have the parts cleaned on a regular basis anyway to help the idle to be normal. If you need help, have a mechanic like one from YourMechanic, come to you in the morning so they can determine the cause of your rough idling issue and make any repairs that are needed.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: Rough idling during cold starts

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: Engine died then started up fine

This problem could be unsafe for you. I recommend contacting a certified mechanic, such as one of the mobile mechanics from YourMechanic, to thoroughly inspect your vehicle at your home or office. They can do a thorough check for possible...

Q: Cost to replace O2 sensors and belts on 2003 Acura MDX

Hi there. In order to get you the right pricing for these services, we need to put you in contact with our sales team. The best way to begin this process if for you to first request a quote for...

Q: Fuel system issues - blue smoke this morning, check engine light on & off, engine vibration

Hello. Thank you for writing in. It sounds like you may be dealing with more than one issue. The first thing we should discuss is the blue smoke coming from the exhaust. This typically means that the engine is burning...

Related articles

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...