Having problems with your 1998 Ford Expedition ?

Ac and heater not working. New Heater core and

\015 1998 Ford Expedition with 139,000 miles. AC and heater not working. Replaced heater core and thermostat. Did not solve problem.\015 Posted / edited by AnonymousUser on : 21-01-2019

Answers :

Have you tried checking the freeon?
You need to but a scanner on the computer and activate the AC. If it does not activate you may have a bad PCM. Also if the pressure in the AC is low it will not run. Also you have a AC relay in the engine fuse box.
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\015\012Now for the bummer part. I have this same truck. Replaced heater core and I didnt get the blend door quite on track and it jammed. I had to take the dash off again. Also your center heat control may be bad.
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\015\012I don't think these two problems are related. Even without AC your heat should work. Do you have rear climate control also. See if that works. If it does you may have a jammed door for the dash area
Repair Help & Product Troubleshooting for 1998 Ford Expedition

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