Mechanics

COOLING FANS NOT ENGAGING

2002 Pontiac Montana

Engine Cooling problem
2002 Pontiac Montana 6 cyl Two Wheel Drive Automatic 131200 miles

My cooling fans will not engage. I have replaced the relays in the main fuse block, if I use a jumper wire in the fuse block where the relay is the fan runs. Not sure if there is another relay. Any Ideas? The 2 relays I replaced were Aux engine cooling fan relay and radiator cooling fan relay.
Avatar
Dcmannin
June 3, 2008.




Inspect and test the engine coolant temperature sensor-if okay could be the computer not commanding the relays -see below circuitry-


http://www.2carpros.com/forum/automotive_pictures/12900_o1_1.jpg




http://www.2carpros.com/forum/automotive_pictures/12900_02_1.jpg




http://www.2carpros.com/forum/automotive_pictures/12900_o3_1.jpg


Tiny
Rasmataz
Jun 3, 2008.


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