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SportTrac Discussion
General Sport Trac Discussion
Gen2 heat fades hot and cold while driving
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<blockquote data-quote="JohnnyB" data-source="post: 1025798" data-attributes="member: 52774"><p>The Temp gauge raises up normally and stays in the middle the whole time. I was considering a possible thermostat also but it is way to erratic for it to be that. It is like driving for a block or two heat comes on and when I let off the gas to slow for traffic or a light it cools off. Then when I get on the gas again and am moving it starts coming out hot again. Very strange. Thats why I was asking about vacuum, maybe I build enough vacuum while on the gas reving at a higher rpm then when I get off the gas at a lower rpm I am getting less vacuum.. Maybe a vacuum leak?</p><p></p><p></p><p></p><p>The mechanic said it is all electric and the blend door is opened and closed by the temp blend door motor. Maybe a temp sensor is bad? giving the signal that it is no longer cold and to move the blend door to the cold side?</p><p></p><p></p><p></p><p>The mechanic has had it on the computer and no codes are popping up.</p></blockquote><p></p>
[QUOTE="JohnnyB, post: 1025798, member: 52774"] The Temp gauge raises up normally and stays in the middle the whole time. I was considering a possible thermostat also but it is way to erratic for it to be that. It is like driving for a block or two heat comes on and when I let off the gas to slow for traffic or a light it cools off. Then when I get on the gas again and am moving it starts coming out hot again. Very strange. Thats why I was asking about vacuum, maybe I build enough vacuum while on the gas reving at a higher rpm then when I get off the gas at a lower rpm I am getting less vacuum.. Maybe a vacuum leak? The mechanic said it is all electric and the blend door is opened and closed by the temp blend door motor. Maybe a temp sensor is bad? giving the signal that it is no longer cold and to move the blend door to the cold side? The mechanic has had it on the computer and no codes are popping up. [/QUOTE]
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SportTrac Discussion
General Sport Trac Discussion
Gen2 heat fades hot and cold while driving
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