Restricted Air Cleaner Element
To determine if a restrictive air cleaner element is causing excessive black or gray smoke, perform the following:
- Remove the air filter element from the air cleaner container; refer to OEM guidelines.
- Visually inspect the air cleaner element for damage or clogging.
- If no damage or clogging is found, check the charge air cooler; refer to "9.2 Restricted or Cracked Charge Air Cooler" .
- If damage or clogging is found, refer to "9.1.1 Air Filter Element Replacement" .
Air Filter Element Replacement
Perform the following to replace the air filter element:
- Remove and replace the damaged or clogged air filter element; refer to OEM guidelines.
- Verify that replacing the air filter element eliminated the excessive exhaust smoke; refer to "18.104.22.168 Test the Engine with Replaced Air Filter Element" .
Test the Engine with Replaced Air Filter Element
Perform the following to determine if the new filter element resolved excessive exhaust smoke:
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.
- Start and run the engine.
- Run the engine at idle with a no-load condition for approximately five minutes, allowing the engine coolant to reach normal operating range, approximately 88-96°C (190-205°F).
- Visually inspect exhaust for excessive smoke.
- If the engine exhaust emission appears normal, no further troubleshooting is required. Shut down the engine.
- If the engine exhaust emission is excessively black or gray, shut down the engine. Check the charge air cooler; refer to "9.2 Restricted or Cracked Charge Air Cooler" .
|EPA07 MBE 4000 DDEC VI Troubleshooting Guide - 6SE568|
|Generated on 10-13-2008|