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It's pretty easy, but take your time! It should be similar on all 1968 to 74 Econolines (without air)
1) Remove dog house, and disconnect heater hoses. Drain to keep mess down in the van.
2) Open hood and remove Battery
3) there are 3 7/16 bolts holding the heater box in from here. remove them all
4) remove the tray between the passenger heater control and the dog house (2 phillips)
5) remove the heater hoses from the heater box. Now is a good time to replace them.
6) disconnect the wiring from the heater box. on the outer side (near door) remove the heater door control cable (1/4 inch hex screw) then pull the bottom of the heater box towards the doghouse. it should be reasonably easy to remove the whole box now
You now put the whole assembly on a bench.
7) remove the 1/4 inch hex screws around the outside of the box
8) remove the 3 3/8 hex bolts from the back (around blower motor and fan)
9) carefully prise the 2 haves apart. They are often held with putty as well as screws. These units are fragile, be patient.
10 remove heater core, clean box, perhaps paint rusted parts, lube and re-assemble.
Installation is reverse of removal...lol.. as if... Run engine, top coolant and watch for leaks keep engine running until you get nice warm air from the heater, top up coolant and go skiing.
What else can I help you with?
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herman_love
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Sell your Ford junk its not the only problem you will have.
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