I11 CHECK THE VACUUM CONTROL MOTOR LINE FOR LEAKS
Plug the vacuum control motor line at the vacuum control motor connection.
Leak test the vacuum control motor line using the vacuum pump.
Does the vacuum control motor line leak?
Yes
REPAIR or INSTALL a new vacuum harness. TEST the system for normal
operation.
No
GO to
I12
.
I12 CHECK THE VACUUM CONTROL MOTOR FOR LEAKS AND CORRECT OPERATION
Connect the vacuum pump to the appropriate vacuum control motor and pull a vacuum.
Does the vacuum control motor operate and hold vacuum?
Yes
GO to
I13
.
No
INSTALL a new vacuum control motor (18A318). TEST the system for normal
operation.
I13 CHECK THE MODE DOOR LINKAGE AND MOVEMENT
Inspect the mode door linkage and verify correct movement of the mode door.
Is the mode door or mode door linkage broken, binding or otherwise obstructed?
Yes
REPAIR the mode door or mode door linkage as necessary. TEST the system for
normal operation.
No
INSTALL a new EATC module. TEST the system for normal operation.
I14 CHECK THE AIR INLET DOOR VACUUM CONTROL MOTOR LINE FOR BLOCKAGE
Ignition OFF.
Disconnect the air inlet door vacuum control motor vacuum connector.
Disconnect the EATC module vacuum connector and attempt to pull a vacuum on the
RECIRC vacuum control motor line using the vacuum pump.
Can a vacuum be pulled on the air inlet door vacuum control motor line?
Yes
REPAIR or INSTALL a new plenum vacuum harness (19C827). TEST the system
for normal operation.
No
GO to
I15
.
I15 CHECK THE AIR INLET DOOR VACUUM CONTROL MOTOR LINE FOR LEAKS.
Plug the air inlet door vacuum control motor line at the RECIRC vacuum control motor
connection.
Leak test the air inlet door vacuum control motor line using the vacuum pump.
Does the air inlet door vacuum control motor line leak?
Yes
REPAIR or INSTALL a new vacuum harness (19C827). TEST the system for
normal operation.
No
GO to
I16
.
I16 CHECK THE AIR INLET DOOR VACUUM CONTROL MOTOR FOR LEAKS AND
CORRECT OPERATION
Connect the vacuum pump to the air inlet door vacuum control motor and pull a vacuum.
Yes
GO to
I17
.
No
INSTALL a new air inlet door vacuum control motor (18A318). TEST the system
for normal operation.
Page 26 of 47
2003 Taurus/Sable Workshop Manual
11/22/2011
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS3H/~MUS~LEN/19/...
