I have a 95 tahoe that the blower speed only works on high. I already replaced the blower motor relay, and that didn't change anything. I was told if it was the blower, would not work on any speed. If the problem was the blower motor resistor, the blower would not work on any speed. I believe at this point, I have to change the control unit. Anyone who has had this problem and figured it out? Appreciate all the info.
a/c heater control unit
- Thread starter rukidinme
- Start date
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I think it's the resistor. On the "High" setting, it completely bypasses the resistor giving the blower motor full voltage, explaining why you have the high speed. all other speeds go through the resistor. I bet this would take care of your problem.
Good luck, Matt
Good luck, Matt
Mike97
Full Access Member
Sucks when you have to answer your own question, but thanks for doing the research :thumbsup:
Mike97
Full Access Member
I've never heard of Rock Auto. Just spent a little time on their web site. I may never go to Napa again, lol.
