Q: Idle jumps up and down

asked by on

When I start the truck, the idle jumps up and down and then sounds as if it wants to shut off. Sometimes it will cut off when I'm at a light, and the Check Engine light comes on.

Hello. If the Check Engine Light is coming on, then the first thing that would be helpful would be the computer codes. These can be retrieved with a scan tool. A mechanic would scan the computer first to get these codes to see what the computer is seeing as the problem. It sounds like you may have a faulty air flow sensor or you might need to have the vehicle tuned up. It may also be a faulty vacuum hose on the engine allowing air to enter the engine unmetered. If you do not have a scan tool to check the computer then I would enlist the assistance of a certified mechanic that can diagnose your Check Engine Light and move forward with repairs for your idling issue.

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. Idle jumps up and 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: I have a 2010 Nissan altima it's given me a p1717 code and does not move can anyone help

I have checked this code and there is not a listing that code P1717 applies to this vehicle. You will need to have the computer scanned again and verify the codes stored. Once you get the correct code then let...

Q: Where can I store a spare tire in my car?

The only place is in the trunk. There should be a space for the spare tire underneath the trunk liner.

Q: Q: Coolant leaking from car

Weather conditions and the severity of the coolant leak can all be factors as to why over heating occurs. A cooling system pressure test should be performed by a technician in order to pin point the location of the coolant...

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...