F 150 4WD V8-4.6L VIN 8 (2010)
Variable Valve Timing Actuator: Customer Interest
Engine - Low Frequency Hot Idle Knocking Noise
TSB 10-18-4
09/27/10
LOW FREQUENCY ENGINE KNOCKING NOISE AT
HOT IDLE
FORD:
2009-2010 Expedition, F-150, F-250, F-350
LINCOLN:
2009-2010 Navigator
This article supersedes TSB 09-23-7 to update the vehicle model lines, Service Procedure and Service Labor Time Standards.
ISSUE
Some 2009-2010 F-150 and F-Super Duty vehicles equipped with a 4.6L 3V or 5.4L 3V engine, Expedition and Navigator vehicles may exhibit a low
frequency knocking noise from the engine at hot idle only. The noise is predominately heard from the right front wheel well area and/or the right hand
(RH) engine cam cover. This noise may be generated from the RH variable camshaft timing (VCT) phaser assembly. This procedure was created to
diagnose the RH VCT phaser assembly.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
The Integrated Diagnostic System (IDS) tests were developed specifically for the vehicles and Power Control Module (PCM) strategies for these
vehicles.
Per Workshop Manual (WSM), Powertrain Controls and Emissions Diagnostics (PC/ED) and Scheduled Maintenance Guide, review customer service
history for use of any aftermarket oil filters.
1. Check for possible diagnostic trouble codes (DTCs).
a. No DTCs present, proceed to Step 2.
b. If DTCs are present, do not continue with this procedure and refer to the PC/ED manual for diagnostics.
2. Engine must be at full operating temperature over 190 °F (88 °C) cylinder head temperature (CHT).
3. Connect IDS diagnostics tool and verify software version is at the latest level (63 or later required).
4. Begin a new vehicle session.
5. Open Tool Box selection.
6. Open Data Logger.
7. Select Powertrain Engine.
8. Select PCM Data Logger.
9. Clear the preselected items by clicking the eraser icon button.
10. Select variable cam timing desired angle number (VCLDSD).
11. Go to live display and press the tick mark.
12. Make sure the parameter identification (PID) is highlighted with the dark lines above and below the data being displayed.
13. Press number symbol: (output state control mode) of the VCT_DSD number PID.
14. Press the Control Item Activate (finger on the button) icon to enable manual control of the PID.
