Jeep Xj Electric Fan Not Working

A dc motor should turn smoothly.

Jeep xj electric fan not working. So either bad relay or temperature switch. I checked the 40amp fuse in the distribution block its fine. Sometimes the electric fan starts running erratically like it does not always want to start. Attach a fused jumper wire to the terminal on the cooling fan that is more exposed after unplugging the electrical connector.

When coolant temperature is below 190f the radiator coolant temperature switch opens preventing the relay from being grounded and electric cooling fan from being energized. I took the jeep in had the ac system discharged so that i could pull out the dash remove the core. All mj sand xj vehicles equipped with a 4 0l engine that have air conditioning and or heavy duty cooling are also equipped with an auxiliary electrical fan. Electric fan on my 1998 xj is not working.

I got a new relay and put that in nothing. Jeep cherokee electric cooling fan diagnosis repair. Jeep cherokee coolant temp sensor replacement. When relay is activated battery voltage is supplied to the fan causing it to operate.

The fan does not kick on at hot temperatures or when the a c is turned on. The fan itself can be tested directly by running a jumper to it this bypasses all of the switches and adds electricity directly to the fan if it comes on your sending unit almost always attached to the radiator itself is bad. Connect the other end of the jumper wire to the positive battery terminal. By this i mean that it feels like it is going past notches.

The fan is controlled by a relay mounted on the left inner fender panel. I connected the fan to the battery with some wire and the fan works that way so the motor is good. Your electric fan is activated in two different scenarios. Attach another jumper wire to the other terminal connecting it to the negative battery terminal.

Sometimes when you turn them by hand you will feel them cog. However i soon found out that the auxiliary. I have checked the fuses and replaced the relay and still nothing. Closes at 190 200 f.

A switch attached to the radiator outlet tank above the radiator lower hose senses engine coolant temperature. 98 xj electric cooling fan not working just picked up a 98 cherokee limited with the 4 0l and the electric cooling fan is not working. Last winter the heater core failed in my 1999 xj.