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2002 Saturn Vue Repair Question


Topics covered: Coolant, Engine, Sensor.
Mileage: 105,000 miles.

Asked on June 30, 2012

Radiator Fan...

I have an 02 Saturn Vue AWD V6 AWD, it's a earlier model so it only has one fan relay,
My problem is the fan turns on when it is suppose to but it does not shut off on it's own
I have already replaced all the relays, fuses, thermostat and engine coolant temperature sensor
I can get the fan going when I turn ac on or when its in defrost mode or when it reaches about half but then cools down to a little over a quarter but fan remains running until i turn the key off and turn it back on no service engine soon lights or service wrench lights, ac works cold and all speed settings work fine.
Any ideas as i'm lost, I read about a fan control module and possible a corroded wire or ground there?
I have no idea an d i'm lost
Avatar Asked by pansatdishman

Answer

Replied on June 30, 2012

then let a shop put a scan tool on it to monitor the command from the bcm. if it is not being commanded off, it may be a bad bcm.

Roy

Tiny Answered by ASEMaster6371 (expert)
24,848 answers provided
Replied on June 30, 2012

okay but wouldn't there be more issues then just the fan not shutting off? also where is the fan control module as I would like to test the wires ?
thanks for your knowledge

Tiny Response from pansatdishman
3 questions asked
Replied on June 30, 2012

i cannot find any control module for the fan as it is contained in the computers.

Roy

Tiny Answered by ASEMaster6371 (expert)
24,848 answers provided

Replied on June 30, 2012

Alright thanks, could any wiring issues cause this and if so what would you think it could be bad ground at splice pack?

Tiny Response from pansatdishman
3 questions asked
Replied on June 30, 2012

Just to add to this one the body control module doesnt control the radiator fan on that vue.It only controls the low coolant sensor input to turn the light on the cluster when there is low coolant.The ecm controls the fan relay turn on.So you must have the early built 2002 vue with one fan relay?You really need to have the computer scanned for codes even though the check engine light is not on.If we get a code it code help really cut down the diagnoses time.If you have any codes please post the exact code numbers not code descriptions.

Tiny Answered by saturntech9 (expert)
23,177 answers provided
Replied on July 4, 2012

I'm going to try a used ecm as theres no codes
thanks for the help

Tiny Response from pansatdishman
3 questions asked