| TSB 15-0122 | 6.8L – MIL ON WITH DTC P0300 AND/OR P0316 – BUILT ON 8/18/2014 AND THROUGH 10/6/2014 |
ISSUE:
Some 2015 F-53 Motorhome Chassis and F-59 Commercial Stripped Chassis vehicles equipped with a 6.8L engine and built on 8/18/2014 and through 10/6/2014 may exhibit an illuminated or flashing malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0300 and/or P0316 present in the powertrain control module (PCM) with no other driveability symptoms.
The front end accessory drive (FEAD) belt may contribute to false misfires.
ACTION:
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
- Replace the FEAD belt. Refer to Workshop Manual (WSM), Section 303-05.
- Connect the Ford
Integrated Diagnostic System (IDS) service tool or equivalent scan tool, to the data link connector (DLC).
| BU9Z-8620-C | Front End Accessory Drive Belt |
| OPERATION | DESCRIPTION | TIME |
|---|---|---|
| 150122A | 2015 F-53 Motorhome Chassis/F-59 Commercial Stripped Chassis 6.8L Engine: Retrieve DTCs, Replace The FEAD Belt And Perform Misfire Monitor Neutral Profile Correction | 0.3 Hr. |
WARRANTY STATUS
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage.
Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.
DEALER CODING
| BASIC PART NO. | CONDITION CODE |
| 8620 | D4 |
- Removes Belt Tensioner with Ease: Tool set designed to release tension on serpentine belt systems in most vehicles, mechanic tools allowing for quick belt removal and installation.
- Includes 3/8" Drive Handle for Reach: Automotive tool kit long handle with 3/8-inch square drive provides extra leverage to access tight engine spaces and tensioner pulleys.
- 1/2" Drive Adapter for Versatility: Pulley removal tool includes a 1/2-inch adapter for compatibility with various socket sizes and high-torque applications during belt replacement.
- Complete Socket Selection: Power steering pulley removal tool set includes 4 shallow sockets (13, 15, 16, 18mm socket) and 3 crowfoot sockets (13, 14, 15 mm) to fit most tensioner pulley bolts.
- Organized Storage and Portability: Tensioner pulley tool comes in a sturdy molded plastic case to keep tools protected, organized, and ready for shop use or on-the-go service calls.
Last update on 2026-07-01 / Affiliate links / Images from Amazon Product Advertising API
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- Ratcheting head with freewheel position allows maximum leverage
- Comes with extension for hard-to-reach idler pulleys
- Now includes 19mm socket for Honda and Toyota applications
- This tool will work where conventional ratchets or breaker bars won't fit due to limited access
- Set ratcheting head to the middle or neutral/freewheel position and once maximum travel point is reached simply click lever into place to lock the ratchet mechanism
Last update on 2026-07-01 / Affiliate links / Images from Amazon Product Advertising API
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