I have replaced the blower motor,resistor,and the heater fan switch and still no heater fan. Which of the 4 fuses under the hood controls the heater fan?
check fuses? Fusible link?
U have a power or ground problem, or a bad relay. Check all your grounds ,power supplying blower moter. Could be the controller in dash. Their or grounds at the back of lift cylinder head . I have the same problem with mine. U need a wireing diagram. Would help u a lot. 40 year retired auto tech. Alton Rowell firstname.lastname@example.org. Give me a couple of days and get back to me.
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