Question about 1998 Mazda B-Series

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Heat constantly blowing

I have a 1998 mazda b3000, i just bought it used. The air is not working, haven't had it checked to see if it needs freon. But the main problem is heat is constantly blowing, I don't know where its coming from. Has anyone else experience this problem?

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I know this problem all to well as i am a Ford dealer tech, the problem is caused by either a defectice air temp control blend door actuator motor or a stuck air temp control blend door or in rare cases both, your system's door is stuck n the heater position, which is where they almost always fail.

Posted on May 14, 2009

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It could be the hot/cold lever has stopped working. Thats if the problem is not low freon. But I would have that looked at frist and then check the switch to see if it has gone out. Hot/cold switch.

Posted on May 14, 2009

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