Question about 2003 Ford F150 Regular Cab
Cant find actuator/servo for air mix.
Defrost is a default if vaccum is lost from engine.. check behind batt in engine comp to see if batt has been leaking. this can cause the acid to drip on small black vacc lines from engine and cause a leak in the vacc system causing it to only blow in defrost . you can fix by cutting damagged vaccumm line and install a small rubber hose over cut ends .. the vaccum lines run between batt and fire wall
Posted on Mar 11, 2009
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Posted on Jan 02, 2017
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