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Ford Ranger 4x2 I have a 2008 ford ranger and the heater is…

I have a 2008 ford...
I have a 2008 ford ranger and the heater is blowing out cold air.
I have already replaced the tearmostat and that did not help?
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Answered in 4 minutes by:
3/25/2011
Kenny Z.
Kenny Z., Ford Senior Master Tech
Category: Ford
Satisfied Customers: 6,131
Experience: Auto Trans, Drivability and Electrical Specialist
Verified

HiCustomer Thank you for asking your question on JustAnswer.

 

With the engine at full operating temperature are both heater hoses hot? You should not be able to hold them more than 5-10 seconds without having to let go.

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Customer reply replied 7 years ago
Yes and the compressor for the airconditioner kicks on also
Customer reply replied 7 years ago
The engine heats up ok but it still blows cold air

Ok thanks.

 

If both hoses are hot then there is a problem with the temperature blend door or actuator in the heater case. The blend door actuator will need to be removed and checked for functionality to see if it turns when commanded with the temperature switch. If it turns then the control side is OK and the actuator will need to be checked under load for stripped teeth and the blend door will need to be checked for binding or possible broken actuator connection point. If it does not turn then the electrical portion of the system will need to be tested to verify there is proper voltages for the command and feedback circuits between the temp switch and the actuator. The actuator is somewhat difficult to access, the passenger airbag needs to be removed as well as the defroster duct trim and keyless entry module. Click the links below for access instructions.

 

CLICK HERE

 

CLICK HERE

 

CLICK HERE

 

 

Kenny Z.
Kenny Z., Ford Senior Master Tech
Category: Ford
Satisfied Customers: 6,131
Experience: Auto Trans, Drivability and Electrical Specialist
Verified
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