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Old 12-02-2011
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Heater will not blow hot?

My heat will not blow hot on my 99 3.0L ranger. I purchased a new thermostat but I have not installed. The temp gauge barely gets to the line BELOW cold even when motor is warmed up. Help please? I'm tired or freezing my **** off.
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Old 12-02-2011
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replaced the thermostat, heat blows hot for a few seconds but returns to cool. the temperature gauge still reads cold after motor is well warmed up, but after I flip the heat on it quickly drops lower.
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Old 12-02-2011
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Have you checked your heater core?
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Old 12-02-2011
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No, what about it should I be looking for?
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Old 12-03-2011
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look for wetness on the floor or in the general area of the heater core. Possibly back flush the heater core...you'd be surprised what will come out of it. Google how to back flush the heater core.
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Old 12-03-2011
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U prob got a bad T-stat. (sticks open)
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Old 12-03-2011
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check the coolant level and bleed the system...start the truck with the rad cap off with the heat on full blast...revving the engine occasionally
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Old 12-04-2011
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Quote:
Originally Posted by djfllmn View Post
check the coolant level and bleed the system...start the truck with the rad cap off with the heat on full blast...revving the engine occasionally
it worked thanks man
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