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Old 10-15-2018, 01:47 PM   #2
tdangle
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Join Date: Mar 2005
Location: Jurupa Valley, Ca
Posts: 1,209
Re: What did you do to your truck today.The 3rd chapter

Fixed my strange temp gauge readings. I had replaced the gauge sender unit and had all sorts of strange things going on. It would peg the gauge on warmup until the thermostat opened then read mid scale which was higher then before. Driving it the readings would vary all over the place. Engine was running normal as I was checking it with a thermo gun. Ended up taking the thermostat out, drilled 2 1/8" holes in it and then filling the engine with coolant at the manifold prior to reinstalling the thermostat. Works great now. Only thing I can figure is that I had some sort of air pocket that refused to work itself out.
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Terry

1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC
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