Temp gauge reading help
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Tuned
Joined: Oct 2003
Posts: 390
Likes: 2
Temp gauge reading help
I have a 1979 F150 with a 300 6 cy 4spd 4x4. It over heated, and steamed all over. The radiator was rebuilt and the thermostat replaced. Before it was rebuilt the temp guage would go to hot, right when I started the truck then cool only slightly. Now the guage starts all the way to the left when I start the truck , it slowly moves the the right toward hot to the A letter on NORMAL then moves back down to the M or R area on NORMAL. Is this ok or is it running hot, or should it be toward the N or O ? MY old truck a 1978 with a 400 always ran at the N or O.
Senior User
Joined: Aug 2006
Posts: 302
Likes: 1
From: Near Atlantic City, NJ
Sounds like it's exactly where it should be-it will go slightly higher when you first start it, until the thermostat opens and lets the cold coolant into the engine, that's when you see it drop.
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