no heater....help.............

ok .2 volts isnt goin to stop it from working, the voltage of the truck ranges from 11 volts with the key and everything on to 14 with the truck running

its got to be the risistor to control the fan speed or the switch itself

pull apart the dash and pull out the fan speed switch and check to see if your getting power at all the wires, one wire should be at 12volts when the ignition is on all the time, and each one should power up everytime u click it over a speed higher, then there is a 5 or 6 pin plug behind the glove box and its pluged into a risistor for a speed control, if im not mistaken that what it is, and it'll have to be replaced

well tomorrow im gona run a hot and ground from the battery and see if the blower even works if not then i guess ill hafta pull that crap out.......thanks guys ill get back to yal tomorrow. -bf