Q: Vehicle won't idle

asked by on

All of a sudden, my Explorer decided it won't idle any more. I can start it just fine, but it dies as soon as I take my foot off the gas. Any idea what might be going on?

You either have a major vacuum leak at the hose to the brake booster where it connects to the engine, or the intake gasket. A diagnostic inspection of your stalling condition by a mechanic, like one from YourMechanic, will verify the leak location, and you will get a quote for the cost of the necessary repairs.

You can check for the leak with a piece of hose and listen around on the engine and brake booster and listen for the leak. Once the leak is identified, then a mechanic can come and service or repair it for you.

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. Vehicle won't 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: Q: Stalling in any gear

Quite a few faults can cause the vehicle to stall and not be able to run properly. The most common problems is a failure with the fuel pump, alternator, fuel filter, MAF sensor, vacuum leak, or exhaust leak. I'd suggest...

Q: Repaired ABS module installed, but lights on and not shifting properly

Hello. This can be caused by a few different things, but most of the time it is caused by the transmission speed sensors. I usually test the sensors first and replace them if needed. This is going to be the...

Q: Q: Problems with idle

Unfortunately, this is something that older cars suffer from. Vacuum lines are made of rubber. Over time, the rubber in the engine compartments begins to get hard and brittle. Once this happens it no longer performs its job properly and...

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...
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...
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.