A-mac

I need to know are all Jeep Cherokees running temp 195 or do other years have other temps?

My cherokee doesnt have the electric fan anymore. And i am going to install another one. I have put a mechanical Temp gauge so i dont use the old temp sending unit. Will it still automatically kick on and off with the temp. I was debating on putting it on a toggle switch any other ideas???

99 Purple XJ

All of them run at 195 around there and if you put the fan on a switch dont forget to turn it on mines on a switch and i leave it on wheeling

fishtaconc

Should be on normal operation, the temp sensor on the tstat housing controls the fan. If you do wire it to a switch, use a keyed source for power, so it doesn't accidently get left on. Use a relay if you put it on a toggle.

VhoffXJ

^ The temp sensor on the tstat housing controlls the eletric fan???

VhoffXJ

Sorry to steal thread, my e fan dose not kick on and at idle climbs over 217 witch when it should kick on.

djb383

.....sounds like a problem.

VhoffXJ

Any ideas?

djb383

What year, what motor, what ambient temps, what cooling system maintenance has been done, fuses/relays/sensors/efan good?

VhoffXJ

01 4.0L Replaced radiator, t stat, flushes, checked clutch fan (good) new rad cap. That's all for cooling. Runs below 210 moving, idle for 1-5min climbs past 220 slowly. Goes down when driving. E fan dose not come on, heard that the sensor is the t stat housing is what makes it kick on?

krazynezz

Main cause of over heating at idle is a bad fan clutch. They're not too expensive it would be worth replacing to rule it out.

VhoffXJ

How can you check? The fan that's ran off the pulley that's connected to the motor is hard to turn and has no play.

trevorc5505

http://www.lunghd.com/Tech_Articles/..._Diagnosis.htm

Could it be the electric cooling fan which is supposed to turn on at 190? I just started having this exact same problem last week and noticed that even at 210, my fan never turns on

DrShaggford

IIRC the E fan kicks on at 220* F.

djb383

Replace the fan clutch and water pump. Fan shroud in place?

krazynezz

Fan shroud plays a big part in cooling. My efan barely ever has to kick on so from my experiences you really shouldn't have temp problems due to a lack of an efan as long as the other components are functioning properly.