My heater has to be taken apert and cleaned, I would like to replace the hoses and core as well. I have the glove box, console tray,etc off. Do I have to remove the whole heater box to replace these items? If so, where are the bolts? I know this was discussed before, I just could not find it. Thank you. (1980 Pinto)
yes you do, I provided these instructions a few years back, hope it helps.
heater core removal instructions
step 1 - drain the radiator
step 2 - disconnect battery and remove
step 3 - in the engine compartment disconnect the 2 hoses that come out of firewall (1 to the water pump and one to the carb going over the valve cover)
step 4 - remove the bolts for the heater blower motor and disconnect any wires for the blower motor to firewall.
step 5 - remove the passenger seat
step 6 - remove the glove box door and glove box
step 7 - remove the fresh air vent pull on passenger side
step 8 - remove the passenger vent and duct from vent to heater core
step 9 - helpful to remove the under-dash coin tray and radio for more room to work/see (don't recall if this is "required")
step 10 - remove the heater control cables from the heater core, do not lose the "clamps" that hold the cables in place.
step 11 - remove the power wire for the blower motor.
step 12 - remove the duct work from the heater core assembly
step 13 - once everything is disconnected from the heater core assembly... I "think" there is 1 bolt that must be removed to pull the assembly out... to the right of the glove box and look up.
step 14 - remove the heater core assembly, hoses will come with... be sure to remove the clamps before you pull thru the fire wall.
step 15 - once the heater core is out... pull the hoses off and get new clamps and hose to reinstall
step 16 - To open the heater core assembly - have to remove all the clips that hold it together, be careful the assembly can be easy to break.
step 17 - pay carefull attention to how the heater core comes apart and all the little pieces/flaps. A camera comes in real handy - taking pics step by step.