E6
CHECK THE ENGINE AND PRIMARY VACUUM LINE FOR VACUUM
Engine Vacuum Output Connector
Connect a vacuum gauge to the engine vacuum output connector and measure the vacuum level.
Is the vacuum level greater than 11 in/Hg?
Yes
REPAIR or REPLACE the vacuum reservoir or vacuum lines between the PVH solenoid vacuum input line and
vacuum reservoir input line. TEST the system for normal operation.
No
DIAGNOSE the engine vacuum system; REFER to
Section 303-00
.
E7
CHECK THE SOLENOID VALVE FOR LEAKAGE
PVH Solenoid Vacuum Connector
Disconnect the LH wheel end vacuum line connector.
Connect a tee fitting and vacuum gauge between the LH wheel end vacuum line connector and PVH solenoid
vacuum line output connector.
Wait a minimum of 60 seconds and measure the vacuum.
Is the vacuum level greater than 1 in/Hg?
Yes
REPLACE the PVH vacuum solenoid. REFER to
Section 204-01B
. TEST the system for normal operation.
No
GO to
E8
.
E8
CHECK THE PVH SOLENOID FOR PROPER VACUUM OUTPUT LEVEL — 4X4 ENGAGED
Measure the vacuum while switching the 4X4 mode switch to 4X4 HIGH.
Page 51 of 62
2000 Ranger Workshop Manual
1/18/2012
http://www.fordtechservice.dealerconnection.com/pubs/content/~WSYL/~MUS~LEN/21/...