no electric fan
Thread Starter
Senior Member
Joined: Mar 2012
Posts: 943
Likes: 1
From: ROCKFORD IL
Year: 1998, 1993
Model: Cherokee
Engine: 4.0
so i noticed this winter my electric fan stopped working.. it never turns on at all. so im running at 210 or a bit over all the time which is causing my radiator to steam out the cap once awhile...
What can i do to test the fan itself? and is there a peice that kicks it on that i can test and where is it located on the jeep.
thanks all.
What can i do to test the fan itself? and is there a peice that kicks it on that i can test and where is it located on the jeep.
thanks all.
Seasoned Member
Joined: Jul 2009
Posts: 275
Likes: 0
From: Lakewood, CO
Year: 1993
Model: Cherokee
Engine: 4.0 HO
my fan hasnt come on once since purchase, last Fall
but, PO didnt have fuses installed, even though he was so proud to show me a brand new fan when i bought it
i have fan pulled out til summer.. still working out other gremlins, easier access to stuff
I think it engages off sensor attached in radiator, but not sure .. would like to know also
but, PO didnt have fuses installed, even though he was so proud to show me a brand new fan when i bought it
i have fan pulled out til summer.. still working out other gremlins, easier access to stuff
I think it engages off sensor attached in radiator, but not sure .. would like to know also
Its probably is the Coolant Temp. Switch it screws in the thermostat housing I think. If you unplug it the fan should turn on by default. If the fan doesn't come on when you unplug it check the relay.
CF Veteran
Joined: May 2012
Posts: 3,242
Likes: 2
From: Colorado
Year: 1992 Cherokee Sport
Engine: Bone-Stock 242
It is the one in the housing. BUT the fan should come on with the defroster and A/C settings on the HVAC, so just do that if you haven't. And be sure to check Fuses as well as the Relay like Silver said.
CF Veteran
Joined: Aug 2010
Posts: 8,357
Likes: 103
From: Canton, MI
Year: 1999
Model: Cherokee
Engine: 4.0
so i noticed this winter my electric fan stopped working.. it never turns on at all. so im running at 210 or a bit over all the time which is causing my radiator to steam out the cap once awhile...
What can i do to test the fan itself? and is there a peice that kicks it on that i can test and where is it located on the jeep.
thanks all.
What can i do to test the fan itself? and is there a peice that kicks it on that i can test and where is it located on the jeep.
thanks all.
Suggest you replace your radiator cap with new 16 lb. cap (Stant makes a good one), then keep an eye on your temp gauge. If you see 220*F on the gauge and the fan still doesn't come on then it's time to check the fan over temp function. Also keep an eye on your coolant overflow reservoir coolant level. When cold the level should be about half way between Cold and Hot.
I'll post a procedure for checking the fan function if you feel as though you need it, just let me know.
Cheers
Trending Topics
CF Veteran
Joined: Sep 2011
Posts: 4,172
Likes: 4
From: Riviera, Texas
Year: 1998 Sport
Model: Cherokee
Engine: 4.0
The electric radiator fan is designed to come on when the coolant temp gets to around 218*F (closer to 220*F).
Suggest you replace your radiator cap with new 16 lb. cap (Stant makes a good one), then keep an eye on your temp gauge. If you see 220*F on the gauge and the fan still doesn't come on then it's time to check the fan over temp function. Also keep an eye on your coolant overflow reservoir coolant level. When cold the level should be about half way between Cold and Hot.
I'll post a procedure for checking the fan function if you feel as though you need it, just let me know.
Cheers
Suggest you replace your radiator cap with new 16 lb. cap (Stant makes a good one), then keep an eye on your temp gauge. If you see 220*F on the gauge and the fan still doesn't come on then it's time to check the fan over temp function. Also keep an eye on your coolant overflow reservoir coolant level. When cold the level should be about half way between Cold and Hot.
I'll post a procedure for checking the fan function if you feel as though you need it, just let me know.
Cheers
My fan does not come on with the ac or defroster. I read somewhere that it was changed in 2000 or something.
CF Veteran
Joined: Nov 2009
Posts: 8,172
Likes: 17
From: The Republic of TEXAS
Year: 1998
Model: Cherokee
Engine: 4.0L HO
just replace my clutch fan an put a new E fan on plugged Efan to factory plug couldnt get e fan to come on . ran jumper to efan an have power , what else could i check ?
CF Veteran
Joined: Oct 2009
Posts: 4,529
Likes: 1
From: somewhere Gee oh Dee cant find me...
Year: 1995
Model: Cherokee
Engine: I6 4.0L
maybe try the temp sensor screwed in the back of the cylingder head driver side, that is the one that reads to the gauge. if its steaming and the gauge is only 210, something is wrong there and i would worry bout that before the fan not turning on cuz that can be fixed by wiring in a switch


