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After the engine is warm up and hot - feel the water hoses to the heater and test if they are HOT- HOT. NO?- The water valve may not be letting hot water go to the heater core.

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โˆ™ 2006-02-25 04:05:47
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Q: I replaced the fuses and relay and heater motor on a 1997 Ford Ranger XLT and still no warm air blowing a little warm air when driving only?
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