Service Manual

ISB, ISBe and QSB (Common Rail [...] Turbocharger Wastegate Actuator
Section 10 - Air Intake System - Group 10 Page 10-63
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If the actuator rod shows no sign of movement, remove
the actuator rod retaining clip and disconnect the actuator
rod from the turbocharger wastegate pin.
Reapply air pressure to the wastegate capsule and check
for actuator rod movement. If there is no movement,
replace the wastegate actuator.
If the wastegate actuator does move, then move the
wastegate lever back and forth and feel for smooth and
proper operation.
If the wastegate lever does not move freely or binds,
spray a penetrating oil on the wastegate lever joint and try
to free the wastegate lever by working the lever back and
forth. If the lever does not become free, then replace the
turbocharger. Refer to Procedure Procedure 010-033
If the lever does become free and operate smoothly, then
reconnect the actuator rod and recheck for movement
with air pressure.
Install
NOTE: In some applications, the turbocharger must be
removed in order to install a new wastegate actuator.
Refer to Procedure Procedure 010-033