geos?
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geos? - 9/3/2005 4:01:21 PM
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playa69
Posts: 13
Joined: 8/23/2005
From: United States
Status: offline
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anybody know anything about geo prizms? our geo's fan isn't turning off. the engine is cool, the A/C is off, but the fan runs. we've changed the cooling fan sensor and the cooling fan switch. but it keeps running. any one have any idea?
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geos? - 9/3/2005 4:10:38 PM
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smash
Posts: 20
Joined: 8/26/2005
From: Canada
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Are the cooling fan sensor wires shorted to ground or together? does it continue to run when the engine is off? is your blower motor conrol set to defost? that will cycle the a/c compressor causing the cooling fan to temporarily come on. did you try the cooling fan relay? it could be shorted out internally or the wiring to it. the only other thing that comes to mind would be a faulty PCM or a false input to yhe PCM. I would start with the cooling fan relay since it is easy and inexpensive part to replace. &nbs p;
Smash
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geos? - 9/3/2005 4:21:21 PM
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playa69
Posts: 13
Joined: 8/23/2005
From: United States
Status: offline
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dude, u r so right. it was the pcm, my guess is that it was either the cooling fan sensor, or the switch, my dad revved (to heat it up) the motor until the pcm got a new reading.......we could have just reset the pcm by unhooking the battery! thanks bro! playa6938598.6821064815
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geos? - 9/3/2005 7:48:14 PM
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smash
Posts: 20
Joined: 8/26/2005
From: Canada
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no problem bro!
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geos? - 9/6/2005 2:28:49 PM
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Patrick
Posts: 268
Joined: 3/17/2005
From: United States
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thanks for the help there smash!!
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geos? - 9/8/2005 1:30:39 PM
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playa69
Posts: 13
Joined: 8/23/2005
From: United States
Status: offline
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crap! it's happenin again! i'm guessing getting a cooling fan switch from a junkyard was a bad idea. or maybe that's not it?
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geos? - 9/8/2005 5:58:57 PM
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smash
Posts: 20
Joined: 8/26/2005
From: Canada
Status: offline
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I would go through what i said earlier and if you diagnose it as a cooling fan switch i would by new.
Smash
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