Detach the interior heater core intake and return hoses from the core nipples by releasing the squeeze clamps using channel lock pliers.
97 expedition heater core removal.
Remove the plenum assembly top.
This is a really hard and indepth job to do but wil save you a 1000 dollars doing it.
Unscrew the screws holding the bracket above the heater core housing and remove the bracket.
I am not a paid ford mechanic.
With all 3 screws out pull and remove the piece.
Remove the two screws.
Note the shape and note shape of where you just pulled it from so you know how to reinstall it.
Remove the 13 screws.
Also my lower coolant radiator hose doesn t get hot so i was thinking maybe it s the heater core.
Take off the heater core cover by removing its screws then pull the core out making sure you don t tear the foam material surrounding it.
Works like a charm.
Remove the hoses by twisting as you pull.
Use a screwdriver to pry off these 2 clips on the heater core pipes.
Remove the plenum assembly top.
Been on for over 5yrs.
Special pair of pliers for this removal.
Disconnect the heater core ground cable strap that attaches to the interior firewall with a single bolt.
Remove the blend door assembly from the case.
I hope that this helps you.
The new clamp system seemed to leak easily.
The piece in my hand.
97 expedition w addendum001 heater core replacement instructions c o ford technical service publication service manual after using the unedited original from a forum reader i added lots of extra notes and tips after completing the heater core job on my own 97f150 4 6 4x4.
Remove the heater core.
Most guys i know just cut the old hose off including the clamp.
I brought it to a local shop and they said it was the heater control switch which i m having a hard time believing but i could use some help form a trained ford tech.
Make sure your problem is not the heater core leaking at the connections because of corrosion.
Remove the heater core bracket.
Please use at own risk.
Heater core replacement in the f series expedition and lincoln navigator involves removal of the dashboard to where it can be disconnected and swung away from the hvac unit bolted to the firewall.
I bought new hoses and put regular hose clamps on.