BEARING GP-AUGER 2015584 - Caterpillar

Probable Causes
Software
Inlet air restriction
Exhaust restriction
Sensor
Cylinder Cutout Test
Hydraulic lash adjusters
Gear train
Fuel injectorRecommended Actions
Table 1
Troubleshooting Test Steps Values Results
1. Ensure that the latest Flash File Software is Installed in the ECM
A. Connect Cat® Electronic Technician (ET) to the service tool connector.
B. Use Cat ET to verify that the correct flash file is being used.
Flash File
Result: The latest flash file is installed.
Proceed to Test Step 2.
Result: The latest flash file is not installed.
Repair: Perform the following procedure:
1. Download the latest flash file from SIS web.
2. Install the software into the ECM.
Refer to Troubleshooting, "ECM Software - Install" for additional information.
If the problem is not resolved, proceed to Test Step 2.
2. Check for a Restriction in the Inlet Air System
A. Check the air filter restriction indicator, if equipped. Refer to the Operation and Maintenance Manual.
B. Measure the inlet air restriction for each turbocharger. Refer to Troubleshooting, "Inlet Air Is Restricted" for additional information.
Restriction
Result: The inlet air restriction is OK.
Proceed to Test Step 3.
Result: The inlet air restriction is NOT OK. An imbalance in the system is discovered.
Repair: Repair or replace damaged inlet air system components. Equalize the inlet air restriction for each of the turbochargers.
If the problem is not resolved, proceed to Test Step 3.
3. Check for a Restriction in the Exhaust System
A. Visually inspect the exhaust for signs of restrictions. Visually inspect the DOC for restrictions.
Restriction
Result: There are no exhaust restrictions.
Proceed to Test Step 4.
Result: There are exhaust restrictions.
Repair: Repair or replace damaged exhaust system components.
Note: If the exhaust temperature in a cylinder varies more than 50° C (122° F) from the normal operating temperature, inspect the injector for damage.
If the problem is not resolved, proceed to Test Step 4.
4. Check for Proper Operation of the Intake Manifold Pressure Sensor
A. Connect Cat ET.
B. Use Cat ET to monitor following pressure:
- "Boost Pressure"
C. Ensure that the reading is steady and varies with engine speed and load.
D. Verify that the status of the "Intake Manifold Pressure" is 0 kPa (0 psi) when the engine is not running.
Sensor
Result: The intake manifold pressure sensor appears to be operating correctly.
Proceed to Test Step 5.
Result: There appears to be a problem with the intake manifold pressure sensor.
Repair: Replace the intake manifold pressure sensor.
If the problem is not resolved, proceed to Test Step 5.
5. Perform a Cylinder Cutout Test
A. Connect to Cat ET.
B. Perform a cylinder cutout test to determine which cylinder is causing the black smoke complaint.
Cylinder Cutout Test
Result: The black smoke could not be isolated to a single cylinder.
Proceed to Test Step 6.
Result: The black smoke was isolated to a single cylinder.
Repair: A failed fuel injector has been detected.
Release the pressure in the high-pressure rail by loosening the end plug on one of the last two fuel accumulators. Refer to Testing and Adjusting, "Fuel Rail Pressure - Release" for instructions on how to release the pressurized fuel.
Verify the "Fuel Rail Pressure" reading in ET is 0 8 MPa (0 1160 psi) prior to servicing the fuel system.
Repair: Replace the suspect injector.
Verify that the repair