Could this be a heater coil problem?

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.

4 Replies

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

CJSANDS61

MEMBER
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

BRUCE HUNT

MECHANIC
3,753 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

CJSANDS61