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Vladgmru, Automotive Electrician
Category: Ford
Satisfied Customers: 2668
Experience:  I've been working with American made cars since 1992.
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2005 Ford Explorer sportstrac xlt No Heat & Thumping Noise

Resolved Question:

2005 Ford Explorer sportstrac xlt No Heat & Thumping Noise when thermestat turned to heat?
Submitted: 7 years ago.
Category: Ford
Expert:  Vladgmru replied 7 years ago.
Thanks for choosing JustAnswer.
My name is Vladimir.
It sounds that you have a blend door issue.
These vehicles are known for their blend door breakage ( failure). If this is the case, you will need to remove the AC heater housing in order to replace the door. This work also involves removing the dash panel. There is an alternative solution and you can read about it HERE.
Customer: replied 7 years ago.

your telling me the problem but when you say sounds like a door.
Can a dealer or certified mechanic do this with a small charge?
Just to reassure myself, is it posible thumping could be something else I though it was a vacuum valve.I wish I could see that system print..

Thank You
Expert:  Vladgmru replied 7 years ago.
I don't think it could be done with a small charge, such work can take up to 8 hours. You should also verify is they sell a door separately. It is possible that it is only serviced as a housing assy. That is why a gave you the link above.
Your temperature ( blend) door is moved by an electric actuator, while other air doors are operated by vacuum control motors.
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