I am helping a friend with a full sized 1996 Chevy truck. the heater
core is plugged and there is no air getting through it. Whats the trick
to getting the dam thing apart? got the fan out. there is four small
bolt on the heater fan housing top and bottom. removed those but the
housing wont come off. Got the bottom plenum housing loose below the AC
evap coil, but cannot get the back by the firewall to break loose.
Whats the trick?
also, the fan does not have high speed. the resistor pack is ok.
so is the HVAC control head (swapped parts). is there a relay somewhere
to do this?
bob
