Section 12.11
Incorrect Camshaft Timing

To determine if incorrect camshaft timing is causing lack of power, perform the following steps:‪

Check the camshaft timing; if the dial indicator reading is within 0.262 - 0.284 in. (6.655 - 7.214 mm), no further troubleshooting is required. If the dial indicator reading is not within 0.262 - 0.284 in. (6.655 - 7.214 mm), check engine timing; refer to "12.11.1 Engine Timing Resolution" .‪

Note: The above camshaft timing settings apply to all 14L DDEC VI engine models.

Section 12.11.1
Engine Timing Resolution

Perform the following steps to resolve incorrect engine timing:‪

1. Perform an engine gear train timing check; refer to appropriate service manual, engine chapter.
2. Verify engine timing resolution; refer to "12.11.1.1 Test Engine with Correct Timing" .

Section 12.11.1.1
Test Engine with Correct Timing

Perform the following steps to determine if corrected engine timing resolved lack of power condition: ‪

To avoid injury before starting and running the engine, ensure the vehicle is parked on a level surface, parking brake is set, and the wheels are blocked.‪

ENGINE EXHAUST ‪
To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic.‪

1. Start and run the engine.
2. Test drive the vehicle to ensure lack of power has been resolved.
   1. If no lack of power occurred during the test drive, no further troubleshooting is required. Shut down the engine.
   2. If lack of power occurred during the test drive, shut down the engine. Call the Detroit Diesel Customer Support Center (313-592-5800).