The high speed on my blower works. I have replaced fan motor and have new relay for high speed. Have power to resisters in air box. I am not sure which relay is for low speeds. I would appreciate some help

It is to the right of the high speed relay. All the relays should be interchangable.

http://autorepair.about.com/library/illustrations/bl457lib.htm

:confused: If the fan motor worked on high speed, then why did you replace the fan motor? :confused:

The easiest way to check your resistor (not resistorS, there's only one) would to be check the voltage output to the blue wire on all lower speed settings. Even a bad resistor will have power at the poles.

See this post for additional help:

http://www.automotiveforums.com/vbulletin/showthread.php?t=439182

:confused: If the fan motor worked on high speed, then why did you replace the fan motor? :confused:

The easiest way to check your resistor (not resistorS, there's only one) would to be check the voltage output to the blue wire on all lower speed settings. Even a bad resistor will have power at the poles.

See this post for additional help:

http://www.automotiveforums.com/vbulletin/showthread.php?t=439182
The fan motor was bad bound up. Bad bearing