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spudnickel Samba Member
Joined: September 29, 2012 Posts: 34 Location: Abbotsford, BC, Canada
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Posted: Mon Jan 11, 2016 10:14 pm Post subject: Possessed Radiator Fan |
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My Rad fan was kicking on when the water was still to cold or when i would hit little bumps in the road. since it was -15c i pulled the fuse out hoping that would stop it all together. it is still possessed. it still kicks on whenever it wants. any help on where i might start with diagnosing would be great. thanks
it is a stock 1988 westy. |
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Wasted youth Samba Member
Joined: July 06, 2012 Posts: 5134 Location: California's Hot and Smoggy Central Valley
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Posted: Mon Jan 11, 2016 10:36 pm Post subject: Re: Possessed Radiator Fan |
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I think that fan is controlled entirely by the three-prong coolant thermocouple that is at near center, driver's side of the front of your radiator. If it is getting defective, it might be allowing electrical flow to the fan.
Curious... when the fan does come on, is it always just the low speed, or does it fluctuate between high and low speeds? |
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djkeev Samba Moderator
Joined: September 30, 2007 Posts: 32625 Location: Reading Pennsylvania
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spudnickel Samba Member
Joined: September 29, 2012 Posts: 34 Location: Abbotsford, BC, Canada
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Posted: Tue Jan 12, 2016 6:59 am Post subject: Re: Possessed Radiator Fan |
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Wasted youth wrote: |
I think that fan is controlled entirely by the three-prong coolant thermocouple that is at near center, driver's side of the front of your radiator. If it is getting defective, it might be allowing electrical flow to the fan.
Curious... when the fan does come on, is it always just the low speed, or does it fluctuate between high and low speeds? |
It still does the 2 speeds, mostly the high speed. The van doesn't have a/c, I think I will start following the wires and look for a bad section and if I can't find anything I will replace the switch.
Thanks |
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Wildthings Samba Member
Joined: March 13, 2005 Posts: 50350
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Posted: Tue Jan 12, 2016 10:09 am Post subject: Re: Possessed Radiator Fan |
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You could start by pulling the connector off the thermoswitch on the left radiator tank. If the problem goes away then the switch would be suspect. I would not think a wiring problem would cause the fan to both come on and to jump between the low and high speeds, but stranger things have happened. |
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