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montanasurfer Samba Member
Joined: March 06, 2014 Posts: 308 Location: United States
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Posted: Wed Sep 28, 2016 6:17 pm Post subject: Re: FIRE in the hole! |
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My situation involved driving around town. I turned the AC on and the High Speed Fan would kick on with it. I turned it on and off a few times to figure out if the AC was related to the fan and it turns out it is! I have since installed a new fuse box and things seem to be going well. I notice that the AC still triggers the fan but that it triggers the fan at a low speed. It has also been cooler today so I don't know if that has an impact on how the fan engages. My van is a 87 Wolfsburg 2wd. Where would it's AC fan switch relay be located? |
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pablum Samba Member
Joined: December 17, 2015 Posts: 562
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Posted: Thu Sep 29, 2016 7:00 am Post subject: Re: FIRE in the hole! |
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Ok. Sheesh, where'd i get that, then? I was going through a high gauge temp thing with my coolant system and it seemed to match that behavior as well. It was months ago though, and i didn't save that to a link or whatever. _________________ The wise man learns from history, the fool from experience.
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I see [a cat] in the street and i aim for the pest with my car. -- bluebus86 |
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kamzcab86 Samba Moderator
Joined: July 26, 2008 Posts: 7893 Location: Arizona
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Posted: Thu Sep 29, 2016 1:44 pm Post subject: Re: FIRE in the hole! |
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montanasurfer wrote: |
I notice that the AC still triggers the fan but that it triggers the fan at a low speed. |
That's how it works. When the A/C compressor clutch engages, it triggers the cooling fan to run... even my Cabriolet does that. However, unlike my Cabriolet, the vans have multi-speed cooling fans. Thus, when the coolant gets hot enough to trigger the high-speed side of the fan, the A/C relay will cut power to the A/C compressor.
The relays are mounted to the D-pillar, even in tin-tops.
Tin-top/non-camper:
Westfalia/camper:
The relay in question is the tall one on the far right.
There is also another cooling fan-associated relay up in the dash, behind the left/driver's vent. _________________ ~Kamz
1986 Cabriolet: www.Cabby-Info.com
1990 Vanagon Westfalia: Old Blue's Blog
2016 Golf GTI S
"Real knowledge is to know the extent of one's ignorance." - 孔子 |
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pablum Samba Member
Joined: December 17, 2015 Posts: 562
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Posted: Thu Sep 29, 2016 4:13 pm Post subject: Re: FIRE in the hole! |
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dammit. I was thinking all that WITHOUT ac factored in. _________________ The wise man learns from history, the fool from experience.
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I see [a cat] in the street and i aim for the pest with my car. -- bluebus86 |
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