'77 f150 overheating
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Joined: Dec 2010
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'77 f150 overheating
I have a '77 f150 4x4 with a 400 4 speed. My problem is at idle the truck runs at normal operating temperature. When I drive it, the temperature gauge climbs to hot. If I let off the gas and push in the clutch, the guage returns to normal range. I believe it is overheating because of the way it runs when the gauge climbs to hot. I have checked coolant and I have no loss. I replaced the thermostat twice, going with a cooler one (180) the 2nd time. I replaced the sending unit thinking it was messed up. The radiator seems to be holding pressure but just for fun I replaced the cap. None of that helped. Any ideas or suggestions would be greatly appreciated.
Senior User
Joined: Dec 2010
Posts: 203
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From: Middle of nowhere, Mo
ya replace the fluid in it just cause its full it might not have the right amount of chemicals in it cause just like oil antifreeze breaks down over time . ford actually recommends changing the coolant every 50 to 60 k depending on driving conditions so that would be the next thing i would do
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twigsV10
1983 - 2012 Ranger & B-Series
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Mar 4, 2016 01:56 PM
