Cummins/Onan — Troubleshoot - Engine Oil Leak
Testing & diagnosis · Engine Lubricating Oil System
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan MDKBH
Procedure
- Step 01: clean contaminated area
- Step 01: check oil level, loose hose or drain fittings, oil filter seal
- Step 02: check leaks while running with dye in oil
- Step 02: evaluate fault codes
Specs & values
- SRT 00-0CM: 0.4 hr step 01; 1.0 hr step 02; in-chassis accessibility B
Full service-parts list: Cummins/Onan MDKBH →
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.