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 section 12.11.1.
NOTE:
The above camshaft timing settings apply to all 14L DDEC VI engine models.
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 section 12.11.1.1.
12.11.1.1
Test Engine with Correct Timing
Perform the following steps to determine if corrected engine timing resolved lack of power
condition:
1.2.Start and run the engine.
Test drive the vehicle to ensure lack of power has been resolved.
[a] If no lack of power occurred during the test drive, no further troubleshooting is
required. Shut down the engine.
[b] If lack of power occurred during the test drive, shut down the engine. Call the Detroit
Diesel Customer Support Center (313-592-5800).
