The only thing that matters here is that if you check it when warm, make sure to a wait a few minutes for the oil in the top of the engine to drain back to the pan. Checking it before starting it in the morning will give you the most accurate reading.
If the check engine line is flashing then that means there is a real problem and you should have it looked at, But if the light is on and NOT flashing the it is most likely a problem with the emmisions system and most likely an oxygen sensor.
The check engine light on a 2005 Jeep Grand Cherokee looks like this... Here is a link Check Engine Light It looks like a little yellow engine.
A gasket could be the cause of a Jeep Cherokee engine to whistle when it's cold. Check the throttle body gasket to see if it needs to be replaced.
It is located on the plastic coolant resevoir. Most likely on the passenger side of the engine compartment. Be sure it is full then check the light on the dash. If it does not go out, then more than likely you should check your wires and plug or you might need to replace the sensor.
there will be a see through/clear plastic resivior in the engine compartment. there are words saying add or full. check when then engine has warmed up. and always use caution as the fluid will be hot and is poisonious and corosive.
Go to your local Auto Parts store and ask them to check you Jeep on their computer. They should be able to give you a print out of everything that is going on with your Jeep.
Disconnect the negative battery cable for about two minutes and that should reset your check engine light.
SHOULD BE, BUT YOU CAN CHECK YOUR LOCAL JUNK YARD FOR VEHICLES TO ASK THEM IF THEY INTERCHANGE, I AM SURE THEY WILL.
A person can rest the check engine light on a Jeep Wrangler by disconnecting the battery. This will also rest other warning lights on the dash.
How do you reset engine light on jeep liberty diesel
dears time to time i have check engine comes jeep cherokke 2004- 6c .pls i want your helape.
If the check engine line is flashing then that means there is a real problem and you should have it looked at, But if the light is on and NOT flashing the it is most likely a problem with the emmisions system and most likely an oxygen sensor.
The check engine light on a 2005 Jeep Grand Cherokee looks like this... Here is a link Check Engine Light It looks like a little yellow engine.
The engine computer controls the check engine light.
The check engine light is not controlled by a relay, the bulb is grounded directly by the engine computer.
With a scan tool
what is this code p1491 on 2003 jeep liberty