CORE ASSEM. 6N0973 - Caterpillar

Use this procedure to troubleshoot a high differential pressure for the air inlet system. Also, use this procedure if one of the following event codes is active or logged.
Table 1
J1939 Code and Description CDL Code and Description Comments
2809-15
Engine Air Filter 2 Differential Pressure : High - least severe (1) E584 (1)
High Engine Air Filter #2 Differential Pressure The engine power may be derated.
The code is logged.
2809-16
Engine Air Filter 2 Differential Pressure : High - moderate severity (1) E584 (2)
High Engine Air Filter #2 Differential Pressure The engine power may be derated.
The code is logged. Probable Causes
Air filter element
EnclosureRecommended Actions
Table 2
Troubleshooting Test Steps Values Results
1. Check for Damaged or Plugged Air Filter Elements
Air Filter Element
Result: The air filter element is not plugged and the piping is not restricted.
Proceed to Test Step 2.
Result: The air filter element is plugged or the piping is restricted.
Repair: Clean or replace the air filter element.
If the problem is not resolved, proceed to Test Step 2.
2. Inspect the Enclosure
A. Check that the engine has been installed in an enclosure that is sufficiently ventilated.
Enclosure
Result: The engine enclosure is not sufficiently ventilated.
Repair: Repair the ventilation for the enclosure.
Verify that the repair eliminated the problem.
If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).