| rhildebrand | -- 07-27-2014 @ 1:46 PM |
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New to this Site but need some help: Wiring up stock gauges - still on 6 volt system on a 1949 F-1 with 239 v8, All Gauges work well Except Temp Gauge. Both Thermal Switch and Sending Unit are new, Wiring to Units are new, Truck is Running 160 Degrees After Warming Up, When you Turn Key on and Crank Engine - Gauge goes from Hot to Cold - Good. As Engine Warms up Temp Needle will come to Say 1/4 or Half (Normal) - OK - Then when you idle the truck up - The Temp Needle will Start Back to "C" - Let Engine set at Idle and Needle will Move Back Toward Normal? Any Ideas on Why the Gauge would do this while Idling Up ??
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| TomO | -- 07-29-2014 @ 7:17 AM |
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Erratic operation of the gauges is usually due to poor grounding of the sending units. Did you use Teflon tape on the sending units? They need clean threads with no sealant in order to operate properly. Tom
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