Series 50G/60G Troubleshooting – Section 4.5 Air Intake Components

Section 4.5
Air Intake Components

Check the intake manifold temperature and operation of the Charge Air Cooler, Engine Cooling Fan, and Air Cleaner as follows:‪

1. Road test the vehicle.
2. Turn on the ignition. Plug the Diagnostic Data Reader (DDR) or theDetroit Diesel Diagnostic Link (DDDL) into the Diagnostic Connector.

   Note: Use the Pro-Link kit to connect the DDR. Use PC card installed in the computer to connect the DDDL.

3. Read active and inactive codes by selecting the DIAGNOSTIC CODE MENU (ACTIVE CODES) on the DDR or DDDL.
4. With the vehicle is running, use the DDR or DDDL to read the Intake Manifold Temperature.
   1. If the Intake Manifold Temperature is below 150 °F (66 °C), check the Fuel System Operation. Refer to "4.6.1 PSV Operation Check" .
   2. If the Intake Manifold Temperature is 150 °F (66 °C) or higher, check the Charge Air Cooler. Refer to step 5 .
5. Check the operation of the Charge Air Cooler as follows:
   1. Inspect and pressure check the Charge Air Cooler system. Refer to Series 60 Service Manual 6SE483 or Series 50 Service Manual 6SE50.
   2. If the Charge Air Cooler and plumbing are damaged or clogged, replace them. Refer to the vehicle OEM service manual.
   3. Road test the vehicle.
   4. If the engine still knocks, go to step .
   5. If the engine no longer knocks, troubleshooting is done.
6. Check the operation of the Engine Cooling Fan as follows:
   1. Inspect Engine Cooling Fan. Refer to Series 60 Service Manual 6SE483 or Series 50 Service Manual 6SE50.
   2. If the Engine Cooling Fan is damage, repair or replace it as required. Refer to Series 60 Service Manual 6SE483 or Series 50 Service Manual 6SE50.
   3. Road test the vehicle.
   4. If the engine still knocks, go to step .
   5. If the engine no longer knocks, troubleshooting is done.
7. Check the operation of the Air Cleaner as follows:
   1. Inspect engine Air Cleaner. Refer to Series 60 Service Manual 6SE483 or Series 50 Service Manual 6SE50.
   2. Clean or replace the Air Cleaner as required. Refer to the vehicle OEM service manual.
   3. Road test the vehicle.
   4. If the engine still knocks, check the PSV operation. Refer to "4.6 Psv Assembly" .
   5. If the engine no longer knocks, troubleshooting is done.