[jmille18]

I installed a CD player with the dash kit, heater worked. I installed a sub and amp, now the heater doesn't turn on. I know all the plugs are in the right spot, and plugged in correctly. All the knobs turn, but nothing happens. Except for when I turn the right most one it seems like pressure is getting left out. I don't even know where to start.

 

[pextor]

probably coincidence.

under the passenger side of the dash, check the plug that goes into the motor. wiggle it with the fan turned on. if it comes on, thats your culprit.

otherwise, it might be the blower resistor went bad.

 

[jmille18]

Blower resister

I just put a new blower resister in today, it worked for about ten minutes, then shut back off. the fan doesn't even kick on now.

 

[juggalo]

now try replacing the blower motor