Skip the auto shop - Our mechanics make house calls

Q: Jeep idling rough.

asked by on

My jeep runs very rough while idling and continues to run rough when accelerating. The Check Engine Light is not on, even though the jeep has been running more roughly lately. You can also smell the exhaust much more than usual.

A: The rough running engine may indicate a mis...

The rough running engine may indicate a miss fire in one or more of the cylinders or the crankshaft sensor may be intermittently not registering. The most common problem is fouled spark plugs and would require plug replacement to fix it. This year jeep seemed to run on the rich side and would foul the plugs. This does not mean that the coils could not be at fault though. I recommend to have a qualified mechanic check it out, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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

Q: Can the wrong spark plugs cause problems like popping noise under the hood ? And cause the car the shit off?

To answer your question in one word - YES, the wrong spark plugs or incorrect spark plug gap can and often will cause a vehicle's engine to misfire or run incredibly inefficient. However, the issue of the vehicle shutting off...

Q: 5.7l cuts out when you throttle the engine from a stop. Gets going sometime then hesitates. When it gets to 50 mph it runs fine.

Hi there. Check the IAC (idle air control valve) and see if its functioning. If the engine is having an issue with stumbling, the IAC could be causing the engine to stall out. If the IAC is working properly, then...

Q: My mechanic mistakenly put oil in my coolant tank, how much damage has been done?

Hello. You have a difficult situation on your hands and I'm sorry for what has happened to you. I would continue trying to flush your system as much as you can. Have an expert inspect any other damage or issues...

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...