Hi Dennis, THe heater box will come out as an assembly from under the dash without removing the dash. The heater is not attached directly to the dash but is colted to the firewall. You need to remove the flexible connection at the passenger side kick panel and then the support that holds the fan. The fan will drop down but will not separate completely from the heater box due to the wires coming from the fan switch resistor block on the drivers side of the heater box (against the firewall). Disconnect the vacuum hoses from the actuators (either record which ones are which or read the article in the technical section). Disconnect the vacuum hose from the intake manifold. Disconnect the heat temperature cable from the water valve (beside the resistor block). Remove the three nuts in the engine compartment. Wiggle the heater out from under the dash. You likely had to slide it towards the passenger side to get it out instead of directly rearward ove the hump. There are a lot of screws holding the box together for access to the heaer core. The valve can be removed with the box in the car by undoing the two screws, the cable and gently pulling the sensor for temperature regulation out from inside the heater box. Do not try to pull the vacuum hoses from the back of the vacuum switch unless you are prepared to repair the switch or replace it. The small nipples are easily broken. If you have any questions just let me know. I may be able to help. Regards, K. Dennis C. wrote: > > It is starting to get cold, I don't need the heater but I really need to > > get the defroster going. > > I have never had the heater connected in the car, I have a couple of > questions: > > How do I replace the heater control valve if I need to? I looked in the > > manual and most of the section on the heater discussed the A/C that I > don't have. All I see is the heater valve in a 90 degree pipe going > into the heater box through a cover with a couple of screws. > > Second question, are the heater control valves still available? > > Last question, will the heater box come out without removing the dash? > I have no idea what the condition of the heater core is and would like > to check it and inspect the heater box if I can get it out. Again the > manual was not much help. > > Thanks > Dennis > > 1996 Dodge Ram 3500 Van Conversion > 1964 Plymouth Belvedere 318 Auto > 1963 Plymouth Sport Fury 383 4-speed > 1949 Dodge Pickup 289/C4 soon to be changed > 1998 Honda Valkyrie Standard Kevin R. Merkley Thunder Bay, Ontario 64 Dodge 440 2dr HT (Cdn) 64 Dodge Polara 500 Convertible (Cdn) ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.