Why is my Jeep Cherokee rough at a stop light?

Why is my Jeep Cherokee rough at a stop light?

Filled radiator with antifreeze, now isn’t running hot, but sitting at a stop light in drive, bad vibration, but in park or driving down the road, nothing. Also, the more coolant I put in the radiator while jeep is running, the rougher it sounds.

How to check the Eng light on a Jeep Cherokee?

Spark plugs, Sent all 6 injectors out for cleaning-all100%, cleaned the fuel rail, new air filter, oil lube and filter, Checked compression, pulled the valve cover to check the rockers and stem movement. I’m not familiar with this coil pack. Nothing that I throw at it seems to help. Any help would be tremendously appreciated. Thanks!!

What does rough idle mean on a Jeep Cherokee?

The rough idle is a chug-chug-chug. It reminds me of a 5.0 I had that was only running on 7 cylinders. Ran fine, but idled like crapola! It does not jump all over the tach. Stays pretty steady, but that chug-chug-chug-is really noticeable at the rear end of the jeep.

What happens if your check engine light goes off?

It sends data to the vehicle’s computer, which uses it to regulate the mixture of air and fuel that enters the cylinders. An engine will keep running even if an O2 sensor needs to be replaced, but it will burn more fuel than usual. In the long run, a bad O2 sensor can damage components like the spark plugs and the catalytic converter.

Spark plugs, Sent all 6 injectors out for cleaning-all100%, cleaned the fuel rail, new air filter, oil lube and filter, Checked compression, pulled the valve cover to check the rockers and stem movement. I’m not familiar with this coil pack. Nothing that I throw at it seems to help. Any help would be tremendously appreciated. Thanks!!

Filled radiator with antifreeze, now isn’t running hot, but sitting at a stop light in drive, bad vibration, but in park or driving down the road, nothing. Also, the more coolant I put in the radiator while jeep is running, the rougher it sounds.

What causes a Jeep Grand Cherokee to idle rough?

Here are the most common problems that would cause a Jeep Grand Cherokee to idle rough: Here are the main components of the ignition system, as well as what would cause them to make your Grand Cherokee idle roughly.

What was the problem with the Check Engine light?

ODBII indicated check engine light was owing to TPS (Throttle Position Sensor). TPS checked out okay. However problem eventually traced to TPS connector plug. Unplugged, WD40 applied to male/female connections, connection worked by connecting/disconnecting, left overnight.