What temp is AUX electric fan supposed to kick in and start working? I have been running around with the ac on and have not ever herd it or witnessed it turn on latley. I also have the extended Grade temp rising to red and having to back pedel the thing down to acceptable temps any info on the electric would be appreciated. I pulled and swapped relays fan comes on with relay out gose off on reinstall?


2005 CRD
OME Frankenlift
Rubicon rims toyo 245/75/16 Open Countrys
2.5 thru EX W/Dynomax Muffler
V-6 A/B
Provent
afe A/F
Custom front bumper w/ receiver hitch, push bar, Tow shackles, IPF driving Lights
Suncoast
Segr
Racor 245 F/H
Airtex L/P
Pricol gauges boost, egt, trans temp, Mtd in custom O/H gauge pod

My electric fan comes on if the compressor runs, even in the winter and the car is idling. My guess is you've got a sensor issue... or a relay issue.

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-=Stock, but goin' places=-

04 3.7 Sport.
Auto Trans
Yokohama Geolandar AT/S 235/70/R16
Garmin GPS on RAM Mount

Mileage Trend:

are we talking about gas or diesel engine here?

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2006 Black Jeep Liberty CRD Limited
K&N, Samco Hoses, Michelin 245/70-16 LTX A/T2, Fumoto F-102, V-Force Muffler, Mopar, Hitch, Trailer Wiring, Skid Plates, Slush Mats, Rear Shelf, Predator Stage 1, Transgo, ORM & CodeReader, Facet 40109 Pump
"IT'S A DIESEL THING, YOU WOULDN'T UNDERSTAND"
Certified Services Auto & Truck Repair

When I did a new Suncoast TC and separate tranny cooler I pulled the electric fan.
My cooler does have a low temp bypass to keep up the temps as I live in Maine. Also I cover the front in winter.
One caveat though, run the motor a while after a hot WFO run for the turbo, motor and tranny cool downs.

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'06 Jeep Liberty Sport CRD with: GDE Hot Flash and Tranny Flash, ehm, Cummins fuel pump, 3" Magnaflow muff, Moog K3199's, Skids, 225-75-16 10 ply, OME springs, Euro T/C, Shift kit, Trans cooler w/thermal bypass, Bigboy bkt, Samco CAC, Brake controller, Trans temp gauge, Al's Upper Arms

Not much explanation for that - ECM controls hi and lo speeds, one 30a fuse for the motor, one 5a fuse for the relay coils - possible one relay opens up, ECM turns motor on for safety, which would seem to indicate both fuses ok - fan should run in DEFROST

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'05 CRD Limited
Pricol EGT, Boost
GDE Hot '11; EDGE Trail switched
SEGR; Provent; Magnaflow;
Suncoast T\C, Transgo Tow'n'Go switch;
Cummins LP module, Fleetguard filter, Filterminder
2.5" Daystar f, OME r; Ranchos; K80767's, Al's lifted uppers
Rubicons, 2.55 Goodyears
Four in a row really makes it go

Thanks for the suggestions.The fan is functioning our temps out here just have not allowed for it to come on until today 80f. gmctd relay and fuses are ok. Pulling relays makes up the circut as a default I found by pulling while running the fan comes on. I will check the defrost mode this will put this one to bed thanks again.

Later flatfender

2005 CRD
OME Frankenlift
Rubicon rims toyo 245/75/16 Open Countrys
2.5 thru EX W/Dynomax Muffler
V-6 A/B
Provent
afe A/F
Custom front bumper w/ receiver hitch, push bar, Tow shackles, IPF driving Lights
Suncoast
Segr
Racor 245 F/H
Airtex L/P
Pricol gauges boost, egt, trans temp, Mtd in custom O/H gauge pod