Freestar V6-4.2L VIN 2 (2004)
Variable Induction Control Actuator: Customer Interest
Engine - Spark Knock on Light Load/Acceleration
TSB 07-16-17
08/20/07
SPARK KNOCK UNDER LIGHT LOAD AND
ACCELERATION - 3.8L, 3.9L, AND 4.2L - SPLIT PORT
INTAKE MANIFOLD RUNNER CONTROL (IMRC)
FORD:
2001-2004 Mustang
1996-2003 Windstar
1997-2003 E-150
1997-2008 F-150
2004-2007 Freestar
MERCURY:
2004-2007 Monterey
ISSUE
Various vehicles equipped with a 3.8L, 3.9L or 4.2L engine and Split Port IMRC may exhibit spark knock under light load and acceleration.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
Inspect for disconnected IMRC actuator rods.
1.
Check both right hand and left hand side IMRC rods are properly attached to the actuator motor and intake manifold runner.
2.
If the IMRC actuator rods are found to be connected properly, do not continue with this TSB. Refer to Powertrain Control/Emission Diagnosis
Manual.
3.
If any IMRC actuator rods are disconnected, refer to Workshop Manual (WSM), Section 303-14 for IMRC service.
4.
If any IMRC actuator rod linkages are found disconnected, replace all four (4) linkage rod retainers. (Figure 1)
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.
OPERATION
DESCRIPTION
TIME
MT071617
Use SLTS Operations If
Actual
Available; Claim Additional
Time
Diagnosis Or Labor
Performed As Actual Time
