Jeep Xj Electric Fan Not Working

A switch attached to the radiator outlet tank above the radiator lower hose senses engine coolant temperature.

Jeep xj electric fan not working. The fan does not kick on at hot temperatures or when the a c is turned on. Attach another jumper wire to the other terminal connecting it to the negative battery terminal. I took the jeep in had the ac system discharged so that i could pull out the dash remove the core. Your electric fan is activated in two different scenarios.

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 have checked the fuses and replaced the relay and still nothing. My money would be on the fan and here s why. Connect the other end of the jumper wire to the positive battery terminal.

So either bad relay or temperature switch. 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. A dc motor should turn smoothly. 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.

Attach a fused jumper wire to the terminal on the cooling fan that is more exposed after unplugging the electrical connector. However i soon found out that the auxiliary. Sometimes when you turn them by hand you will feel them cog. By this i mean that it feels like it is going past notches.

The relay is usually located just under the hood ledge on the drivers side above the wheel well. Closes at 190 200 f. The fan is controlled by a relay mounted on the left inner fender panel. I got a new relay and put that in nothing.

Jeep cherokee electric cooling fan diagnosis repair. When relay is activated battery voltage is supplied to the fan causing it to operate. 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. I checked the 40amp fuse in the distribution block its fine.

I connected the fan to the battery with some wire and the fan works that way so the motor is good. Electric fan on my 1998 xj is not working. The thermo switch for the fan is usually a silver dollar sized affair down low on the left hand side of the radiator as sitting in the drivers seat.