what wold cause 93 mazda protege to blow cold air from heater all the time?
1993 mazda protege blows luke warm air when idiling but gets cold when driving or if i put blower on high. why?? and i tried cardboard in front of radiator
http://www.clubprotege.com/forum/showthread.php?50768-Poor-heat- bad-heat-crappy-heat --- check this out. It might give you some ideas of what to check.
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