1975 F150 w/ 390 is getting hot

Asked by Aug 22, 2015 at 08:41 PM about the 1975 Ford F-150

Question type: General

My engine is getting pretty hot only after about 10 minutes of driving and it gets too over
215+ is this normal? and if not what can i do/fix to keep it cooler?

2 Answers

20,855

check / replace rad cap first try and go up 2 lbs and see if that helps

17,230

The vehicle is 40 years old. When is the last time you changed the thermostat? When is the last time you changed the coolant? Have you ever added just water to the radiator? Flush the radiator at least twice with flush chemical. Remove the thermostat first so the water flows freely. Then flush again and again with clear water until it comes out clean. Make sure the heater is on to clean out the core inside the vehicle. Then replace with new thermostat and 50/50 coolant.

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