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Date:         Tue, 12 Sep 2006 06:42:39 -0400
Reply-To:     Woody Halsey <WHalsey@SYA.ORG>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Woody Halsey <WHalsey@SYA.ORG>
Subject:      Re: Blinking coolant level light
Comments: To: Charles McGehee <chasm@ELLTEL.NET>
Content-Type: text/plain; charset="us-ascii"

Which is the tank/reservoir with the sensor in it? That's the one I filled up to the cap on Ken Wilford's suggestion and solved (apparently) my problem. But maybe it was a case of "true, true, and unrelated," as my surgeon wife says or an example of the "post hoc ergo propter hoc" logical fallacy that someone taught me about sometime long ago.

Woody 83.5 V'gon Haverhill, MA

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Charles McGehee Sent: Tuesday, September 12, 2006 3:20 AM To: vanagon@GERRY.VANAGON.COM Subject: Re: Blinking coolant level light

Well, I think so, John. The pressure reservoir (not the overflow tank) is full to the top. Is that the same as full? Is there any other way to know? This is new to me.

Charles '85 Westy

At 10:24 PM 9/11/2006, John Lauterbach wrote: >Charles, are you sure that you cooling system is entirely full, and >you have bled all the air from it? > >John >'84 >----- Original Message ----- From: "Charles McGehee" <chasm@ELLTEL.NET> >To: <vanagon@GERRY.VANAGON.COM> >Sent: Monday, September 11, 2006 9:43 PM >Subject: Re: Blinking coolant level light > > >>I'm desperate. No burned wires. Coolant level sensor good. Temp 2 >>sensor good (or so says my mechanic), level control module good. >> >>But here's a puzzle. When I turn on and turn off the headlights >>rapidly, the blinking light often goes out (not always, but >>often.) I thought that maybe that indicated a drop in voltage which >>was affecting the light and maybe the voltage stabilizer on the back >>of the instrument panel was screwy. Checked it out, though, and it's >>okay, too. (9.8-10.0 v, well within Bentley's specs.) >> >>So, where do I go from here? Any ideas? I'm totally beat. >> >>Charles >>'85 Westy >> >>At 04:40 PM 9/7/2006, Charles McGehee wrote: >>>Here's where things stand with my blinking coolant level light: >>> >>>All grounds clean and sound. Coolant sensor works. Replaced the >>>coolant level control module (relay).. No change. So I threw up my >>>hands and took it back to my mechanic. >>> >>>Unfortunately, it's not clear how much he knows about what. He >>>thought the coolant control module was on the printed circuit behind >>>the instrument cluster and said I had replace the wrong thing until I >>>showed him the part and he called VW verifying that what I replaced >>>was in fact the coolant level control module. In any event, he said >>>that the light would stop blinking when he turned the headlights on >>>and off repeated. They he wiggled on the wiring harness which runs >>>across the back above the muffler. He discovered that it was melted, >>>or at least the plastic cable retainer was sort of melted. After he >>>wiggled on it, the light switch routine wouldn't work any more. >>> >>>He determined, then, that my relay is working and current is coming >>>out of it, but it's not being received by the flashing light unit, >>>apparently. He's convinced that the problem lies either in the >>>printed circuit on the instrument cluster unless the "melted" wiring >>>has caused some sort of short or current leakage . So I told him to >>>put it back together again, and I'd look at the wiring harness before >>>committing to a new printed circuit. This is where it stands now. >>> >>>What do you all think of this? Have you ever had the rear wiring >>>harness melt? It's in a stupid place, I must admit, but still. Have >>>any of you every had problems with the printed circuit behind the >>>instrument panel? >>> >>>Would appreciate your views. I'm at my wits end. >>> >>>Charles >>>'85 Westy > >


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