Mechanical Inspection: Compression
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Perform KOER CYLINDER CONTRIBUTION SELF-TEST under QUICK TEST in appropriate SELF-DIAGNOSTICS - DIESEL article. Service any DTCs that are present. The following are possible causes for failing this test:
- Broken Compression Rings
- Burnt Or Bent Valves
- Bent Push Rods
- Bent Connecting Rods
- Damaged Rocker Arms
- Faulty Fuel Injector Assembly