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Date:         Sun, 15 Oct 2017 13:56:42 -0700
Reply-To:     Mark Hersh <cmwolfsburg@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Mark Hersh <cmwolfsburg@GMAIL.COM>
Subject:      Re: Radiator fan issue - where's the ground?
Comments: To: Larry Alofs <lalofs@gmail.com>
In-Reply-To:  <CA+r=JhrmwfH6eR6Se4BT+LKPG=_+U1t8hmwkDgCWCO8dPK3oBQ@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"

I had nothing when the high-speed side should have worked, so I need to see if 12 V gets to the fan at all.

On Sun, Oct 15, 2017 at 6:42 AM, Larry Alofs <lalofs@gmail.com> wrote:

> If you have a resistor behind the DS headlite, that's the first thing to > check. All three terminals should show some continuity to the others. > > Larry A. > > > On Sat, Oct 14, 2017 at 7:51 PM, Mark Hersh <cmwolfsburg@gmail.com> wrote: > >> Greetings vannuts, >> >> Subject vehicle is 1986, 2.1L waterboxer with auto trans (early in model >> year; built Aug 85) with factory AC that has been pretty much >> disconnected/removed other than the dash switch to the left of the >> steering >> column. That used to operate the fan until I was messing around in there >> some years ago doing a headlight upgrade (Frank Condelli kit). After that >> the AC switch did not work the fan but everything else was good (except >> for >> the key-in-ignition chime, which I miss, but that may have been the result >> of a new ignition switch repair). >> >> The radiator was replaced in 2008 and coolant regularly flushed/serviced, >> so there is about 40K miles on the radiator (don't know on the coolant). I >> didn't do the rad replacement so I don't know if the thermoswitch was >> replaced then, I would guess so as it was part of an engine >> replacement/tranny rebuild/get the sucka roadworthy. >> >> I can't remember the last time hearing the fan, probably over the summer >> (haven't driven much since). The other day when I was parked with engine >> running (waiting for emissions testing) my fan did not come on and my >> gauge >> was elevated and light blinking. Got it moving and it calmed it down some >> and I got home. I let it cool a couple hours and went back to the >> emissions station (and passed) and the fan did not come on but I never got >> so hot that the light blinked. >> >> Yesterday I did the troubleshooting Ken Wilford outlined at >> >> https://www.vanagain.com/troubleshoot-your-radiator-fan/ (Thank you, >> Ken!) >> >> The only response was clicking from the high-temp rad fan relay (on top of >> the under-dash fuse panel). No low-speed response, no high-speed >> response, >> other than the clicking relay. >> >> I suppose the next step is either testing for 12 V at the fan (with the >> thermoswitch plug jumped) or apply 12 V directly to the fan) and see the >> results. >> >> I'm thinking also that perhaps I should clean the ground for the fan, and >> I'm guessing that it is nearby. But before I go hunting for it I thought >> I'd ask. I know the low-speed resistor is behind the drivers' side >> headlight (thanks again, Ken). Is the ground there also? >> >> Thanks >> >> Mark >> >> >> -- >> 86 Campmobile Six-Seater "Monty" >> >> Black dogs are euthanized at a greater rate than other-colored dogs, >> regardless of temperament. Learn about Black Dog Syndrome at >> http://www.blackpearldogs.com/ Learn about black dogs in a Vanagon at >> http://www.pbase.com/mhersh/image/108220533 >> > >

-- 86 Campmobile Six-Seater "Monty"

Black dogs are euthanized at a greater rate than other-colored dogs, regardless of temperament. Learn about Black Dog Syndrome at http://www.blackpearldogs.com/ Learn about black dogs in a Vanagon at http://www.pbase.com/mhersh/image/108220533


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