Skip the auto shop - Our mechanics make house calls

Q: Idling high/low and car shuts down

asked by on

When my truck is parked and I let it run, it seems like it is having difficulty idling and acts like it wants to shut down, but then it starts sounding better. It repeats the pattern high/low over and over. When I started investigating, I thought it was the vacuum, but now I'm not so sure. When it shuts down while I am driving, it happens suddenly and there seems to be no reason. And as I mentioned, while I'm driving it will do that high/low idling which I can't figure out either. My truck has a two-barrel holley carburetor and it’s a 360 V8. In your expertise, what is going on with my truck?

Hello there, thank you for asking about your 1989 Dodge Ramcharger. Possible causes for this situation are a failed ignition component or an automatic shutdown relay experiencing a malfunction. Have one of our mobile experts take a look at the vehicle’s idling problem, replace the automatic shutdown relay if necessary, and save yourself a dangerous trip down the road with a stalling vehicle.

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. Idling high/low and car shuts down

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: Front differential locked on a 2001 all-wheel drive Durango R/T

Typical of that age, when they are wearing and you go at low speeds, it feels like they are locked in. The transfer case assembly will just starts to wear out. The differentials and CV joints, they start to wear...

Q: Engine stalls after warm up, then starter just clicks.

It sounds like you may have two separate issues happening related to potentially a bad starter solenoid (clicking sound at starter) and possibly a failing ignition coil causing the stalling and then subsequently not starting for 30-45 minutes until the...

Q: Engine check light, rough idle, loss of power.

Hello. If your filter is over oiled and the oil got onto the hot wire of the air flow sensor, then that can cause it to burn out. A scan tool could be used to check the reading of the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...