This guy is selling NOS temperature gauges, but note that he's in Egypt. Shipping took a while but I finally got the one I ordered. TheSamba.com :: VW Classifieds - VW T3 Vanagon Temperature Gauge 251919511A NOS <https://www.thesamba.com/vw/classifieds/detail.php?id=2362467>
On Fri, Aug 6, 2021 at 12:38 PM Dennis Haynes <d23haynes57@hotmail.com> wrote: > If the gauge is reading normally with the low coolant controller (43) > removed than the gauge is the problem. > > They are all similar in age. I forgot the value, try replacing that > capacitor in it. > > Dennis > > > -----Original Message----- > From: Vanagon Mailing List <vanagon@gerry.vanagon.com> On Behalf Of > OlRivrRat > Sent: Friday, August 6, 2021 11:14 AM > To: vanagon@GERRY.VANAGON.COM > Subject: Re: Low Coolant Warning LED > > Coolant Level Full @ all conditions > > Wires to Snsr Disconnected & Jumped > Flashes > > Wires from Snsr Ground Continuity > Good > > Wires from Snsr to Relay 43 Continuity > Good > > Wire from Relay 43 to Ins’ Cluster 14Pin Connector Continuity > Good > > 3 Traces to Gauge on PC Foil Continuity > Good > > Swapped In ( now ?able ) used Gauge > Still Flashes > > Guessing @ this point that must have 2 Gauges with Same Symptoms & > > Quite Actually Not Surprised @All if that is the case ~ > > 1 additional note > With Relay 43 Removed > Still Flashes > > > > On 6 Aug , 2021, at 6:57 AM, Dennis Haynes <d23haynes57@hotmail.com> > wrote: > > > > The initial key on indicator test is part of the circuit in the gauge > itself. There is a capacitor that controls the timing of this feature that > tends to fail. The other possibility is that the low coolant sensor control > is signaling the low coolant light. There are 2 versions of this > controller. The early ones would short the temp sensor to ground causing > the gauge to rise and the light to flash. The later units' "pulse" the > sensor ground causing the light to operate with the gauge rising a minimal > amount. This change allows an indication for coolant loss vs. over > temperature. > > > > It is also possible that this could be indicating a true cooling system > issue. If the system is low on coolant or air-combustion gas bound on a > cold start the coolant will be pulled down from the tank causing the low > coolant indication. Turning the engine off, especially with a non > functioning pressure cap will allow the coolant to flow back so when > checking the tank it appears full. During this light on condition leave the > engine running while you check the coolant level in the pressure tank. > > > > Dennis > > > > > > > > -----Original Message----- > > From: Vanagon Mailing List <vanagon@gerry.vanagon.com> On Behalf Of > OlRivrRat > > Sent: Friday, August 6, 2021 12:39 AM > > To: vanagon@GERRY.VANAGON.COM > > Subject: Low Coolant Warning LED > > > > Could someone please explain what controls the initial Igni’ On > Low Coolant Warning LED > > > > Flash Duration ~ Have 1 that won’t stop blinking,, Have performed all > the normal diag’s including > > > > swapping in diff’ gauge ~ Am wondering if it might possibly be that what > ever turns off that initial > > > > Igni’ On Flash might be malfunctioning ~ > > > > > ORR ~ DeanB > |
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