At 06:46 PM 9/2/2003, Blake Thornton wrote:
>I started up my 84 today to have the coolant light flash for about 5
>minutes before finally turning off (the flashing light there by the temp
>gauge).  There is no way my van was overheated (it hadn't been running).
>
>Any ideas?  My sensor that is in my coolant resevoir is brand new with a
>new o-ring (and is possibly leaking, but not much).

Short the sender terminals -- if gauge stops blinking then may be poor
connection or sender electrodes coated or mixture way off.  If still
blinking (likely), then input voltage to gauge wrong (outside of 9.5-10.5
volts btw gauge +12 terminal and gauge ground terminal) or gauge itself bad
(likely).

If opening (unplugging) the sender makes the gauge go full-scale, then you
have the older type gauge controller (likely on an '84), and any blinking
without high-temp indication on the gauge is either bad gauge or bad voltage.

d

>Thanks for any thoughts!
>Blake
>St Louis

--
David Beierl - Providence RI USA -- http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"