| NOISY VALVES |
1. High or low oil level in crankcase. |
1. Adjust the engine oil level. Refer to
FILTER, ENGINE OIL, REMOVAL AND INSTALLATION
. |
| 2. Thin or diluted oil. |
2. Change the engine oil and filter. Refer to
FILTER, ENGINE OIL, REMOVAL AND INSTALLATION
. |
| 3. Low oil pressure. |
3. Check the oil pump, if OK, check the rod and main bearings for excessive wear. Refer to REMOVE CYLINDER HEAD AND OIL PAN FOR INSPECTION - 1.3L
. |
| 4. Dirt in valve lash adjusters. |
4. Replace as necessary. Refer to
LIFTER(S), HYDRAULIC, REMOVAL AND INSTALLATION
. |
| 5. Worn rocker arms. |
5. Replace as necessary. Refer to
ROCKER ARM, VALVE, REMOVAL AND INSTALLATION
. |
| 6. Worn valve lash adjusters |
6. Replace as necessary. Refer to
LIFTER(S), HYDRAULIC, REMOVAL AND INSTALLATION
. |
| 7. Worn valve guides. |
7. Inspect the valve guides for wear, cracks or looseness. If either condition exists, replace the cylinder head. Refer to CYLINDER HEAD, REMOVAL AND INSTALLATION
. |
| 8. Excessive runout of valve seats or valve faces. |
8. Replace as necessary. Refer to VALVES, INTAKE AND EXHAUST, REMOVAL AND INSTALLATION
. |
| CONNECTING ROD NOISE |
1. Insufficient oil supply. |
1. Check and adjust the engine oil level. Refer to
FILTER, ENGINE OIL, REMOVAL AND INSTALLATION
. |
| 2. Low oil pressure. |
2. Check the engine oil pump, if OK, check the rod and main bearings for excessive wear. Refer to REMOVE CYLINDER HEAD AND OIL PAN FOR INSPECTION - 1.3L
. |
| 3. Thin or diluted oil. |
3. Change the engine oil and filter. Refer to
FILTER, ENGINE OIL, REMOVAL AND INSTALLATION
. |
| 4. Excessive bearing clearance. |
4. Replace as necessary. Refer to REMOVE CYLINDER HEAD AND OIL PAN FOR INSPECTION - 1.3L
. |
| 5. Connecting rod journal out-of-round, rough surface or debris. Obstructed oil feed hole. |
5. Service or replace the crankshaft. Check the crankshaft for plugged oil feed hole. Refer to
CRANKSHAFT, REMOVAL AND INSTALLATION
. |
| 6. Misaligned connecting rods. |
6. Replace the bent connecting rods. Refer to
ROD, PISTON AND CONNECTING, REMOVAL AND INSTALLATION
. |
| MAIN BEARING NOISE |
1. Insufficient oil supply. |
1. Check and adjust the engine oil level. Refer to
FILTER, ENGINE OIL, REMOVAL AND INSTALLATION
. |
| 2. Low oil pressure. |
2. Check the engine oil pump, if OK, check the rod and main bearings for excessive wear. Refer to REMOVE CYLINDER HEAD AND OIL PAN FOR INSPECTION - 1.3L
. |
| 3. Thin or diluted oil. |
3. Change the engine oil and filter. Refer to
FILTER, ENGINE OIL, REMOVAL AND INSTALLATION
. |
| 4. Excessive bearing clearance. |
4. Replace as necessary. Refer to REMOVAL AND INSTALLATION
. |
| 5. Excessive end play. |
5. Check the thrust washers for wear. Refer to
CRANKSHAFT, REMOVAL AND INSTALLATION
. |
| 6. Crankshaft journal out-of round, rough or debris. Obstructed oil feed hole. |
6. Service or replace the crankshaft. Check the engine block for plugged oil feed hole. Refer to
CRANKSHAFT, REMOVAL AND INSTALLATION
. |
| 7. Loose flywheel, flexplate or torque converter. |
7. Tighten the bolts to the proper torque specification. Refer to TORQUE SPECIFICATIONS
. |