If my blower motor in my 98 grand Prix works only on low speed and sometimes I have to tap it to make it do that is the motor bad or is it the resistor
Could be either but I would replace the resistor first. Cheaper and usually easier to replace.
I agree. Change resistor
I agree it sounds resistorish, but usually the low speeds are the first to go. However it the motor works on some speeds then its fine. Motors either work or they don't.
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