Could this be a heater coil problem?

Tiny
CJSANDS61
  • MEMBER
  • FORD RANGER
I have a Ford Ranger 2003 with 39,000 miles. When I first start the truck the wimshield fogs up. I turn on the defrost to clear it and when I turn off the defrost I hear a slight sucking noise. It sounds like someone sucking an empty drink through a straw. It only lasts two or three seconds and then it stops. I was concerned that it might be the heater coil. I have heard that they can be very costly to repair.
Monday, December 18th, 2006 AT 9:50 PM

4 Replies

Tiny
BAREFOOTBOB88
  • MEMBER
  • 60 POSTS
Wel, If it just does it when you swith on or off the defrost setting it's pry not your heater core. It maybe a leaky vaccum line. Chech your coolant level though to make sure your sucking noise isn't just air in your coolant system.
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Monday, December 18th, 2006 AT 10:58 PM
Tiny
CJSANDS61
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  • 3 POSTS
Thank you. I will check the check the coolant as you suggested. I appreciate your quick response.

Cjsands61
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Wednesday, December 20th, 2006 AT 11:51 PM
Tiny
BRUCE HUNT
  • MECHANIC
  • 3,754 POSTS
If you or someone has the manuals to check this thought out try looking up whether the defroster operates off of a vacuum line that opens and closes the damper door. The hose could be leaking.
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Thursday, December 21st, 2006 AT 9:38 AM
Tiny
CJSANDS61
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I will try to check that also. Thanks so much for the info.
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Tuesday, December 26th, 2006 AT 11:09 PM

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