Did you burp the air from the system after you changed the thermostat? You could have a bad radiator cap, your fans are not coming on when you reach temperature. The passes in the radiator may be clogged and may need to be cored. The outside fins on the radiator are dirty and may need to be flushed with water and soap. Your water pump may not be working....
changed out thermostat still no heat and gauge not working. What should be my next step?
1988 Ford F-150
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Maintenance & Repair
So I have done everything I can think of. Changed t stat and rad. cap, put all new vacuum lines in. Have plenty of coolant. Both heater lines get hot. I have good heat to the heater core. And the...
1995 Ford F-150 Special 4WD LB
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Maintenance & Repair
The heat started blowing cold for awhile and the temp gauge quickly shot up to hot then quickly fell back down to normal and the heat was ok. The shop said no "external coolant leaks at the time. Perf...
1997 Ford F-150 XLT 4WD Extended Cab SB
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Maintenance & Repair
2007 ford f150 door latch not working kills battery
2007 Ford F-150 FX4 SuperCab
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Maintenance & Repair
2010 F150 right side head lights both low and high beam not working.
2010 Ford F-150 XLT 4WD
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Maintenance & Repair
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