Question about 2003 Ford F350 Super Duty DRW SuperCab
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Posted on Jan 02, 2017
No the switch is probably ok. The problem is most likely the door actuator motor. It is a small electric motor that opens and close the the correct door to direct the air in the ac/heating ducts. These motors take place of the old cables that did the same job.
Posted on Aug 27, 2009
Defrost mode is a fail safe if the vacuum supply to the control head is lost. It sounds as if you have a break in the vacuum supply line from the engine to the interior of your vehicle. With the vehicle running check for a vacuum leak under the dash on the passenger side. You can use a vacuum hose as a stetscope to help hear it better. And check under the hood on the passenger side where the vacuum hoses are bunched up and see if any are broken and leaking.
Posted on Dec 06, 2009
SOURCE: No heat/defrost 01 corolla
Sounds like you have air trapped in the heater core when you flushed the heater core. loosen the upper most heater core hose and run the engine untill coolant seeps out. Wait until the coolant has reached running temperature.
Posted on Jan 18, 2010
SOURCE: 2000 F250 super duty v10
check the vaccum hoses on the passenger side under hood. I think that there are two hoses but it might be three. they get brittle and leak. but they move a little valve that you can move yourself just to see if heat works then. it is inline with the heater hoses I think. Bear with me though because it has been about 3-4 years ago when I figured this one out. it is definately a vaccum problem. there is also a set of vaccum hoses under passenger side of dash, several colors in it. might want to look there because sometimes kicked by peoples feet but money is on the ones inline with heater core. just move linkage and see if it gets hot air. Hope I helped and didnt confuse.
Posted on Jan 12, 2009
sure :while not hearing of any going bad on something that new(08)
ford allways has had a problem with door hinge pins wearing
and not allowing latch to line up hence it does'nt close tight and rattles
simple sat. day fix for you and a buddy
obtain new hinge bushings (brass) from NAPA
or other store have buddy raise edge of door tap out old bushings with pin punch and hammer ALL FOUR) tap in new ones use a plastic punch if possible to save dammage to new ones
take red crayon and put a line on top and bottom of latch pin shut door and open again What crayon line is missing
top line loosten bottom door hinge move up slightly tigthen bolts
Bottom line missing adjust bottom hinge down then repeat test
till both crayon lines are still there
door is now centered
it won't rattle now
closes easyier too
Posted on Apr 07, 2009
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