Engine Mechanical - 3.0L LM2 Diesel | Diagnostic Information and Procedures | Document ID: 2137776
| Cause |
Correction |
| Seized accessory drive system component |
1. Remove accessory drive belts. 2. Rotate crankshaft by hand at the balancer or flywheel location. |
| Hydraulically locked cylinder Coolant/antifreeze in cylinder Oil in cylinder Fuel in cylinder |
1. Remove glow plugs and check for fluid. 2. Inspect for broken head gasket. 3. Inspect for cracked engine block or cylinder head. 4. Inspect for a sticking fuel injector. 5. Inspect for cracked cylinder wall. |
| Seized automatic transmission torque converter |
1. Remove the torque converter bolts. 2. Rotate crankshaft by hand at the balancer or flywheel location. |
| Seized manual transmission |
1. Disengage the clutch. 2. Rotate crankshaft by hand at the balancer or flywheel location. |
| Broken timing belt and/or gears |
1. Inspect timing belt and gears. 2. Repair as required. |
| Seized balance shaft |
1. Inspect balance shaft. 2. Repair as required. |
| Material in cylinder Broken valve Piston material Foreign material Cracked cylinder wall |
1. Inspect cylinder for damaged components and/or foreign materials. 2. Inspect for fallen cylinder wall. 3. Repair or replace as required. |
| Cause |
Correction |
| Seized crankshaft or connecting rod bearings |
1. Inspect crankshaft and connecting rod bearings. 2. Inspect for fallen cylinder wall. 3. Repair as required. |
| Bent or broken connecting rod |
1. Inspect connecting rods. 2. Repair as required. |
| Broken crankshaft |
1. Inspect crankshaft. 2. Repair as required. |