Ford Taurus 2003 - Page 25

I7 CHECK THE VACUUM RESERVOIR FOR A LEAK
 Connect the vacuum pump reservoir line to the vacuum reservoir.
 With the vacuum pump connected to the vacuum reservoir line, leak test the vacuum
reservoir.
 Does the vacuum reservoir leak?
Yes
INSTALL a new vacuum reservoir. TEST the system for normal operation.
No
GO to I8.
I8 CHECK THE EATC MODULE VACUUM SOURCE LINE FOR BLOCKAGE
 Disconnect the EATC module vacuum connector.
 Connect the vacuum pump to the EATC module vacuum source line and attempt to pull
a vacuum.
 Can a vacuum be pulled on the EATC module vacuum source line?
Yes
REPAIR or INSTALL a new EATC module vacuum source line. TEST the system
for normal operation.
No
GO to I9.
I9 CHECK THE EATC MODULE VACUUM SOURCE LINE FOR LEAKS
 Plug the EATC module vacuum source line at the EATC module connection.
 Leak test the EATC module vacuum source line using the vacuum pump.
 Does the EATC module vacuum source line leak?
Yes
REPAIR or INSTALL a new EATC module vacuum source line. TEST the system
for normal operation.
No
INSTALL a new EATC module (19980). TEST the system for normal operation.
I10 CHECK THE VACUUM CONTROL MOTOR LINE FOR BLOCKAGE
 Ignition OFF.
 Disconnect the EATC module vacuum connector.
 Disconnect the vacuum line from the appropriate vacuum control motor noted in step I1.
 Connect the vacuum pump to the appropriate vacuum control motor line noted in step
I1, and attempt to pull a vacuum.
 Can a vacuum be pulled on the vacuum control motor line?
Yes
REPAIR or INSTALL a new plenum vacuum harness (19C827). TEST the system
for normal operation.
No
GO to I11.
Page
25
of
47
2003 Taurus/Sable Workshop Manual
11/22/2011
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS3H/~MUS~LEN/19/
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