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Brian
Brian, Ford Shop Foreman
Category: Ford
Satisfied Customers: 1361
Experience:  Ford Senior Master certified Tech, 36 years Ford technician.
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I have a 1998 ford explorer no heat

Resolved Question:

i have a 1998 ford explorer no heat
Submitted: 6 years ago.
Category: Ford
Expert:  Brian replied 6 years ago.

Brian :

First thing to check is the two heater hoses at the firewall that circulate coolant through the heater, with the engine fully warmed up, they should both be hot to the touch, and they should be the same, not one hotter than the other, if one is cooler than the other, the heater core is probably restricted. If they are both hot, you will need to check the temperature blend door in the heater box, these had a problem with the doors breaking and the actuator would not move the door any longer. To check this, you need to remove the actuator, it is mounted on top of the heater box behind the glove box. The actuator has a shaft on it that turns when you turn the temperature knob, the door has a hole in the end that is the same shape as the shaft, it the hole in the door is broken, it will be missing a piece and look different than the shaft on the actuator. If the door is broken you will need to replace the heater box, or you can buy the door seperately and disassmble the heater box and replace the door.

Customer:

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Customer:

i check the heat hoses they aer the same they are not hot touch they are the same

Brian :

If the engine is warmed up and the hoses, the thermostat may be opening too soon, you may want to replace the thermostat first and see if improves the heat.

Customer:

the two heater at the fiewall are not to hot to touch they very warmed and they are the same

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