Question about 2004 Jeep Grand Cherokee
I have changed the thermostat and the cooling sensor. I noticed before changing the cooling sensor the fan was not running while the A/C was on and not running with the A/C off. After changing the sensor the fan started working. After running my jeep up the road and back, I let it idle for a bit and it started to over heat and the fan was not running.The water pump was changed out about 4 years ago. I am not seeing any leaks on the ground or around the motor. What else could it be?
Posted by Anonymous on
It sounds like the problem is with your fan not running. I would try and see if you have power at the fan and test the fan to see if it isn't bad.
Posted on Jun 01, 2017
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Posted on Jan 02, 2017
When was the last coolant change?
Under 2 years or 24,000 miles.
Change the thermostat and gasket first.
Use a 195F with pop-let protection.
A stuck/failing thermostat is a common cause of over-heating problem.
To change the fan,the entire protector plastic has to come out.
Most likely you will break the push in locking pins.
Get few replacement push in locking pins before you start the job.
Posted on Dec 02, 2009
is the radiator fan coming on and staying on, or not coming on at all?? i was having the same problem, and it turned out to be a fan relay switch which was pretty easy to replace. around 40 bucks, and maybe 30-45 mins.
Posted on Jan 25, 2009
try the water pump - first - make sure the radiator is really full - take the cap off cold and fill - if it looks full - start and run 8 minutes or so - then fill it up - look at ur fan belt - is it tight - tight is about how much pressure u use to make a firm hand shake with little movement - any movement over about an inch is loose - when the jeep warms up the belt can slip and not even make a noise - - new materials don't always squeal. - then be sure ur water pump is ok - they go slowing - the fins wear down - one more thing is the radiator - u don't say how many miles or what maintenance schedules you have or not so that's it for now
Posted on Dec 26, 2009
This happened to me. After I had my power steering pump replaced. It took me 3 places to finally find out the problem. When the garage put the power steering back on they didn't get it on correctly, I don't understand all the details but it somehow I was getting radiator fluid on my belts. Which caused no heat and overheating. It took a radiator place to figure this out. I took it to Jeep and they told me it was the power steering pump.
Posted on Feb 07, 2010
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