Skip the auto shop - Our mechanics make house calls

Q: Engine idles in cold temps, sometimes in warm, idles in neutral and engine sometimes shuts of when stopping

asked by on

The engine idles when I start it and when in neutral the rpms drop below 900. The engine sounds like it's struggling and sometimes shuts off when stopping at a red light. I've tried cleaning the fuel injector and changing to better gasoline but those don't matter. What do you suggest I try next?

You could try cleaning the throttle body and idle control valve. If the engine has a vacuum leak, then fix the leak. An idle of around 900 RPMs is about normal for most manual transmission vehicles and you may have other problems causing the engine to stall.

If you need help then have a qualified mechanic run a diagnostic inspection and recommend the best path to repair.

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 idles in cold temps, sometimes in warm, idles in neutral and engine sometimes shuts of when stopping

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: Spark knocking in car

Your neighbor is correct, your particular model does not have an EGR valve. I suggest that you have a technician check the condition of the spark plugs and test the spark plug wires. Either of those of those components are...

Q: Do I need a new intake manifold

The intake manifold runner control does not come apart and is part of the intake manifold. you will need to replace it as an assembly. The parts and labor will have to be priced locally by contacting YourMechanic.

Q: Driver has to gas engine to prevent shutting down

Hello there, thank you for asking about your 1993 Isuzu Pickup. If you're getting 26 mpg in a 23 year old truck, that's as good as it gets. As far as the stalling out, there are many potential causes. Since...

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.