Skip the auto shop - Our mechanics make house calls

Q: Rough idling when cold, would not idle when it warms up

asked by on

My vehicle has idling problems. When it is cold, my car would idle roughly. It wouldn't idle at all when the vehicle warms up. It has around 200,000 miles on it. I had fuel filter and fuel pump replaced. Also, the iar filter, spark plugs and wires were changed along with MAF, PCV, IAC and MAP. The car runs well at higher speeds. I don't know what the problem is. Please give me some advice.

A: Hello. It sounds like you have already chan...

Hello. It sounds like you have already changed a lot of parts on this. Most of the time, the issue is actually caused by a leaking intake manifold gasket. This is the most common issue on this vehicle. It leaks and causes a serious vacuum leak which affects the engine as you mentioned, but allows it to run fine at higher speeds or better once it is warm. If you are going to have this repaired, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose your car’s rough idling issue.

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!

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: How do I remove the gear shifter to replace the neutral safety switch

Hello. In order to remove the shifter you will have to remove the vehicle's shift knob and disassemble the vehicle's interior. From the symptoms you describe, however, it would appear that your vehicle may be experiencing a different issue, perhaps...

Q: i have oil leaking from the upper drivers side of my transmission bell housing cannot figure out where it is comming from

It would be difficult to suggest where this oil leak may be coming from without seeing the vehicle. With that said, the fastest way to diagnose this is to thoroughly de-grease the entire area where you suspect the leak originates,...

Q: Car sporadically idle high & runs around 1500 RPMS

Hi there. The most common causes of this on your vehicle are either a bad idle control valve, a dirty or failing throttle body, or a vacuum leak. It is very common for the engine to have a vacuum leak...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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.