Yes
If bubbles are visible at the hublock/wheel hub interface, REPLACE the hublock/wheel hub O-ring; REFER to
Section 204-01B
. TEST the system for normal operation.
If bubbles are visible at the hublock end, REPLACE the hublock; REFER to
Section 204-01B
. TEST the system for
normal operation.
No
GO to
E28
.
E28
BUBBLE CHECK THE KNUCKLE/WHEEL BEARING INTERFACE
WARNING: Do not use shop pressure when performing this check.
CAUTION: Do not apply more than 2 psi to the vacuum lines when performing this check.
Apply 2 psi pressure to the vacuum wheel end input line.
Apply soapy water to the knuckle/wheel bearing interface.
Are bubbles visible at the knuckle/wheel bearing interface?
Yes
REPLACE the wheel bearing/knuckle interface O-ring; REFER to
Section 204-01B
.
No
If equipped with 4WABS, GO to
E29
.
If equipped with RABS, GO to
E30
.
E29
BUBBLE CHECK THE ANTI-LOCK BRAKE SYSTEM (ABS) SENSOR
WARNING: Do not use shop pressure when performing this check.
CAUTION: Do not apply more than 2 psi to the vacuum lines when performing this check.
Apply 2 psi pressure to the vacuum wheel end input line.
Apply soapy water to the ABS sensor.
Are bubbles visible at the ABS sensor?
Yes
REPLACE the ABS sensor O-ring; REFER to
Section 206-09B
. TEST the system for normal operation.
No
GO to
E30
.
E30
BUBBLE TEST THE WHEEL BEARING OUTER SEAL
WARNING: Do not use shop pressure when performing this check.
CAUTION: Do not apply more than 2 psi to the vacuum lines when performing this check.
Apply 2 psi pressure to the vacuum wheel end input line.
Apply soapy water to the wheel bearing outer seal.
Page 59 of 62
2000 Ranger Workshop Manual
1/18/2012
http://www.fordtechservice.dealerconnection.com/pubs/content/~WSYL/~MUS~LEN/21/...