Q: RPMs running high on car

asked by on

When I start my car, the engine revs up to 5,000 RPMs. In addition, the RPMs seem to stay up high when stopped at a light.

Sounds like you might have a large vacuum leak. Think of your engine as a big vacuum cleaner. If the vacuum cleaner has a restriction then it slows down, if the port is completely open it goes as fast as it can. This is what happens with your engine. An un-metered vacuum leak will cause a symptom similar to what you are describing. There are other things that can cause an issue like this, but vacuum leaks are common. A mechanic, such as one from YourMechanic, can help you diagnose the cause of your engine running high and make the repairs that are needed.

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. RPMs running high on car

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 fix smoke coming out my engine

Hi there. The cooling system should be inspected in order to determine why the engine is overheating. There are simple possibilities, such as low coolant, a bad engine cooling thermostat, a partially plugged radiator, and a non-functioning electric cooling fan,...

Q: Low RPM/ Won't Shift

Hello and thank you for contacting YourMechanic. It seems like the IAC (idle air control) valve is malfunctioning. Check the wiring to the IAC for any debris and any corrosion. If the wiring harness is in good shape, then I...

Q: I want to change out my air suspension to coil springs.

Hi there. The best thing to do is go with the local parts store for the coil spring set. Any coil spring is a good spring as long as they are designed for the weight of your vehicle. Now since...

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 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...
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.