Check as follows: Check for improper valve clearance, engine brake adjustment, worn or damaged camshaft lobes and rollers. If found, repair the valve clearance, worn…
Category: DD15
Check as follows: Remove the valve cover. Bar the engine to TDC #1 with the #6 valve in overlap. Locate the mark on the camshaft…
For diagnostics more emphasis needs to be placed on a cylinder in the positive or negative range when checking the ISC value. The positive range…
Check as follows: Does the vehicle have a vertical exhaust and stack? If yes, go to the next step. If no, check for coolant loss.…
To determine if a worn or damaged cylinder kit is causing excessive blue smoke, perform the following: Move the vehicle requiring testing to the chassis…
Check as follows: Clean the engine. Fill the coolant system if low. Attach a pressure test kit. Pressurize the coolant system per OEM specs. Check…
If a weak cylinder or low compression is suspected, perform the cylinder compression test using DDDL. If results indicate a weak cylinder, perform the manual…
Check as follows: Test for improper injector setting. Compare the calibration code(s) shown on the Detroit Diesel Diagnostic Link display with the six digit calibration…
Check as follows: Does the engine start and run? If yes, check for loose connections, kinked fuel lines, or issues related to the fuel tank.…
Use the driver questionnaire, the troubleshooting tree, and the low power troubleshooting chart to determine if low horsepower is the problem. The factors affecting wheel…