thermostat

  1. C

    Engine Temp-Too Cool

    1984 -C10 with a 4.1(250c.i.d.) inline 6. Was doing fine, then one day it would not show warm on the gauge. Replaced thermostat, seemed to work for a little while then back to showing cool. Gauge will not move off of "C". We redid the interior on the truck and my son broke the gauge needle...

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