20 Most Recent 2004 Jeep Grand Cherokee - Page 3 Questions & Answers

sounds like it could be the motor ..if so nasty job .. you can download complete manuals on the internet for free ..then you can take it from there wether or not you wish to tackle the job yourself .. good luck

Only overheating at idle while standing still is most probably a cooling fan problem. If you have the electrical cooling fan, then first check its fuse. If ok, than there are two separate relays (high speed and low speed) in the power distribution center under the hood. (this is for 2004 model only). Swap both relays, it can be that the low speed relay is bad. If this helped, than you will have to replace the bad relay. If this didn´t help, then put 12V directly on the fan motor (watch hands and loose clothing) to be sure the motor is not bad.

Bad temperature switch?

Take it to a different shop. This one doesn't know how to diagnose, they only know how to throw parts at it and hope the new parts fix the problem.

I would guess that one or more of the spark plugs, or spark plug (high tension leads) have failed. That would cause the engine to run uneven , off balance,and create fuel vapours due to unburned fuel. Worse case scenario it could be leak on fuel injectors or fuel line, if possible have some turn engine over with hood open, if you can see or smell fresh fuel, get professional assistance as this is a extreme fire hazard.

perhaps this is what you need: https://www.youtube.com/watch?v=VEWu4bc9YAA

run the fault codes could be faulty injectors / low fuel pressure or it could be failing crank/cam shaft position sensors

Is it really the engine which starts running, or is it the hydraulic cooling fan which makes a lot of noise due to the high coolant temperature? Since the temperature drops down rapidly when you start driving, the problem seems to be with a restricted airflow from the cooling fan. Was the radiator changed lately? Take care in not overheating this engine, because the heads can warp (coolant leak) and/or it can start dropping a valve seat.

When the check engine light is on, there's a trouble code stored in the computer. Asking us to guess which of the more than 1,000 possible codes is a fool's game. Get the trouble codes read. And test the engine coolant temp sensor to see if it's reporting an accurate temp at cold startup. You may have several problems going on here

Gasket/O-ring bad on the oil fill cap. The fan is throwing it around where you've found the excess.

Go to ebay or try Amazon...Maybe join a grand Cherokee page on Facebook...i did and all my problems get resolved.

I have checked the ground wire in the drivers door ?????? what about B+ voltage to the switch ? These vehicles wires from the body to the door break inside the rubber boot . Looking at a wiring diagram (so U know what wire is what ) Test with test light ,voltmeter etc... Video's on youtube for testing electrical circuits . Plus these systems are controlled by a DDM - driver door module . Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info year , make , model and engine size . Under system click on body & accessories ,then under subsystem click on power door locks or windows . Just to give you an idea of what's involved . Watch this video , jeep ,dodge , chrysler same thing . Dodge Grand Caravan No Power Window No Power Locks CAN Trouble

Belt is slipping

It does have air in it. Take You may have to bleed the system.

#1 the a/c system may have a freon leak or just might need recharging. #2, if the electricals, all work, but the car's engine won't turn over, I'd look for dirty battery terminals, and/or have the battery, checked, if those check out ok, then, I'd check the starter out.

Either you got the wrong neutral safety switch or it is installed incorrectly

You need the body control module (BCM) scanned to see what is going on,