Q: Engine light comes on and idles roughly.

asked by on January 13, 2016

The Engine light is on and the car idles roughly. It was diagnosed earlier as an engine misfire.

Single cylinder misfires are usually caused by ignition components which is where I would start with on this car. Verify the ignition cap and rotor are still in one piece and that the wires are not arcing losing spark. Have a mechanic scan for codes to find out which cylinder is misfiring (P0301 for cylinder 1, P0305 for cylinder 5, etc.).

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

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

Transmission shifts up and down randomly.

Hi There, What you are describing sounds like possibly a bad speed sensor or potentially a faulty transmission control module, which also controls the speed sensors. The transmission control module has various sensors such as vehicle speed sensors, wheel speed...

jaguar s type 2001 won't start battery was charge and is good

For your issue, the appropriate service is a no start diagnostic. If your car battery passes a load test, which is the first thing to confirm, the mechanic will check for power "to" the starter motor. If there is power...

Multiple problems on a 1996 Jeep Grand Cherokee

Hi there. From the description you have provided, there are multiple problems going on with your vehicle, so the faults may or may not be related. Although the car is showing many symptoms, this may not be terminal. It could...

Related articles

P0081 OBD-II Trouble Code: Intake Valve Control Solenoid Circuit (Bank 2)
P0081 P0081 trouble code definition P0081 indicates a generic issue with the intake valve control circuit bank 2. It may be seen with P0082. The vehicle may have a bank 1 and a bank 2 intake solenoid. What the P0081...
P2110 OBD-II Trouble Code: Throttle Actuator Control System Forced Limited RPM
P2110 P2110 trouble code definition Throttle Actuator Control System Forced Limited RPM What the P2110 code means P2110 is an OBD-II generic code for the engine control module (ECM) detecting a major failure in the throttle actuator control (TAC) system...
Symptoms of a Bad or Failing Evaporative Emission Control Canister
Common signs include the Check Engine Light coming on, raw fuel smell coming from the back of the car, and a collapsed or leaking fuel tank.