Q: Can car jolting be caused by bad IAC valve?

asked by on

Can car jolting be caused by bad IAC valve?

Yes, if it’s bad it creates vacuum leaks, and when you get vacuum leaks, it gets wrong data to the computer and it gives the wrong amount of fuel to the engine. The air-fuel ratio is mixed and that can do all kinds of things. It’s very common.

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. Can car jolting be caused by bad IAC valve?

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: My truck bogs down when I accelerate going down the road

This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected...

Q: Vehicle won't idle

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...

Q: Engine idling and check engine light on

Carbon build-up on the intake valves is a common issue on the IS250. Lexus recommends to remove the valves and clean them while other manufacturers use anything from an intake cleaning solvent to sandblasting using walnut shells to remove the...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.