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CONDITION POSSIBLE CAUSES CORRECTION OIL CONSUMPTION OR SPARK 1. PCV system malfunction. 1. Check system and repair as 2. Worn, scuffed or broken rings. 2. Hone cylinder bores. Install new 3. Carbon in oil ring slots. 3. Clean pistons and install new 4. Rings fitted too tightly in grooves. 4. Remove rings and check 5. Worn valve guide(s). 5. Replace cylinder head(s). 6. Valve stem seal(s) worn or 6. Replace seal(s). ENGINE DIAGNOSIS - PERFORMANCE CONDITION POSSIBLE CAUSES CORRECTION ENGINE WILL NOT 1. Weak or discharged battery. 1. Charge or replace battery as necessary. 2. Corroded or loose battery 2. Clean/tighten battery/starter connections. 3. Faulty starter or related circuits. 3. Check starting system. 4. Seized accessory drive 4. Remove accessory drive belt and 5. Engine internal mechanical failure 5. Refer to standard procedure - hydrostatic ENGINE CRANKS BUT 1. No spark. 1. Check for spark. 2. No fuel. 2. Perform fuel pressure test. 3. Low or no engine compression. 3. Perform cylinder compression test. ENGINE LOSS OF 1. Worn or incorrect gapped spark 1. Replace spark plugs or set gap. 2. Dirt or water in fuel system. 2. Clean system and replace fuel filter. 3. Faulty fuel pump. 3. Replace fuel pump. 4. Incorrect valve timing. 4. Correct valve timing. 5. Blown cylinder head gasket(s). 5. Replace cylinder head gasket(s). 6. Low compression. 6. Test cylinder compression. 7. Burned, warped, or pitted valves. 7. Install new or reface valves as 8. Plugged or restricted exhaust. 8. Replace parts as necessary. 9. Faulty ignition cables. 9. Replace ignition cables as necessary. 10. Faulty coil(s). 10. Test and replace as necessary. ZH ENGINE - 3.2L SERVICE INFORMATION 9 - 713 |