Seized accessory drive system component.

1. Remove accessory drive belts.
2. Rotate crankshaft by hand at the pulley or flywheel location.

Hydraulically locked cylinder.

1. Remove spark 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.

Seized automatic transaxle torque converter.

1. Remove the torque converter bolts.
2. Rotate crankshaft by hand at the pulley or flywheel location.

Seized manual transaxle.

1. Disengage the clutch.
2. Rotate crankshaft by hand at the pulley or flywheel location.

Broken timing belt and/or gears.

1. Inspecting time belt and gears.
2. Repair as required.

Seized crankshaft.

1. Inspect crankshaft.
2. Repair as required.

Material in cylinder.

1. Inspect cylinder for damaged components and/or foreign materials.
2. Repair or replace as required.

Seized crankshaft or connecting rod bearings.

1. Inspect crankshaft and connecting rod bearings.
2. 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.