Q: My car keeps having hiccups will driving and at a red light it revs up

asked by on

Recently I cant seem to drive anywhere without experiencing my Jeep having hiccups on the road. Its getting worse and worse, and happens as I speed up slightly. Once I was at a red light and it kept reving up and pushing itsself foward into traffic to the point where I had to put it in park and let go of the brake pedal for it to calm down. Im not sure what the issue is, I change the oil very frequently with castrol oil, and I never drive on the highway but simply around town. What is the problem and how can it be fixed? Thank you so much for taking the time to read this.

My car has 206000 miles.
My car has an automatic transmission.

Erratic engine speed is often referred to as "surging" or "hunting". The causes include a faulty idle air control valve or circuit (IAC), a faulty ECM (not common), faults in the fuel pump control circuit, defective spark plug(s) or ignition system components, faulty fuel injector(s) or injector circuit faults, and PCV system faults including vacuum leaks. Often, the application of a real time automotive scanner can find the fault as actual engine operating parameters can be viewed during the "surging". I recommend that you request a rough operation/rough idle diagnostic and the responding certified mechanic will perform the required diagnostic steps to get this resolved. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help 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. My car keeps having hiccups will driving and at a red light it revs up

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: Car speakers going in and out

The radio is likely the cause, but the speakers may also be the cause. If the speaker sounds good one minute, then bad the next, then it is the radio. I recommend that you have a mechanic, such as one...

Q: Fuel pressure low

Hi! I would recommend having a technician double check the fuel pump, filter, fuel lines, fuel related wiring, and fuses. It's always best to double check components pertaining to an initial concern in case something was missed. Also, there is...

Q: Temperature gauge goes to high when car is stopped

To begin, this isn't something an inspection would reveal unless the mechanic was specifically looking for it. Firstly, how high does the temperature gauge rise when you come to a stop? It is normal for this to occur, especially in...

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...
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...