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check the coolant temp. sensor, this sends info to the computer to turn on the cooling fan. Check for other answers for the cooling fan, I posed a answer on how to replace the fan relay with out removing the front facia and bumper
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Where is the radiator cooling fan relay?
on a 1999 jeep grand cherokee where is the coolant fan relay
1998 Grand Cherokee Larado fan not blowing Is this a relay or fan motor and how do I find and fix.?
Use a test light connected to the fan motor - if it lights fan motor is bad if it does not light could be fuse, relay, switch, or resistor
Why does my 2003 Jeep Cherokee Laredo cooling fan run continuously?
My 1999 Grand Cherokee just started this today. My first thought is that the fan relay is stuck in the "on" position.
Why does your 02 Jeep Grand Cherokee overheat in park you replaced the relay and checked the wiring?
We don't know what relay you are referring to. Check your thermostat and radiator fan. Fluch out your cooling system.
How do you hotwire a cooling fan to come on with the ignition on a 2003 jeep Cherokee larado?
same prob w mine, burned wires, almost toated jeep. dont do it. bring to mechanic. worth 75 bucks. 25 for relay, 50 labor
Where is the Radiator Cooling Fan Motor 2003 jeep grand Cherokee?
The relay is under the right front fender, behind the bumper. It's difficult to get to.
Why does my 2003 Jeep Grand Cherokee overheat even after replacing the thermostat the coolant and radiator?
You may have to replace the cooling fan relay or the cooling fan itself, I had the same problem and I first replaced the relay and it helped but then the cooling fan went out and I repalced it and now everything is fine.
Wiper relay location 1996 Jeep Cherokee?
Where is the windshield wiper relay located on a 1996 grand jeep Cherokee
Your cooling fan will not start on your 99 jeep grand Cherokee even after you changed out the relay- What is the problem?
Make sure that the fuse and sensor for the cooling fan are working. If these are ok then look at the fan motor, it could be bad.
Why is cooling fan not working in 99 jeep grand Cherokee after replacing fan relay sensor and radiator?
Check the fuse. It is located in the under hood fuse panel.
How do you replace a cooling fan relay switch on a 2002 jeep grand Cherokee?
You either remove the front bumper assembly or you remove the passenger side head light and cut a access hole.
How do you adjust rocker arms in a 2000 Jeep grand Cherokee 4.0 motor?
if it has a knock that is not the issue, cooling fan relay goes bad, they run hot & develop a knock inside the motor
