mm might be a bad heater control valve. pop the hood and find the heater hoses coming out of the fire wall follow them down and you will find a valve it will have 4 hoses total hooked to it might have to change it out also. make sure the little vac line is still hooked up to it. you could also try holding the litte arm closed thats on it to see if you get heat then.
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2000 Ford Ranger 4X4 Offroad 5.0 5 speed ext.cab 88 Ford Ranger 5.0 v8 5 speed Reg Cab ---------- Many Mods
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