| ENGINE WILL NOT START |
1. Weak battery. |
1. Charge or replace as necessary. |
| 2. Corroded or loose battery connections. |
2. Clean and tighten battery connections. Apply a coat of light mineral grease to the terminals. |
| 3. Faulty starter. |
3. Refer to DIAGNOSIS AND TESTING
. |
| 4. Incorrect spark plug gap. |
4. Refer to SPECIFICATIONS
. |
| 5. Dirt or water in fuel system. |
5. Clean system and replace fuel filter. |
| 6. Faulty fuel pump, relay or wiring. |
6. Refer to STANDARD PROCEDURE
. |
| ENGINE STALLS OR ROUGH IDLE |
1. Vacuum leak. |
1. Inspect intake manifold and vacuum hoses, repair or replace as necessary. |
| |
| ENGINE LOSS OF POWER |
1. Dirty or incorrectly gapped spark plugs. |
1. Replace spark plugs. |
| 2. Dirt or water in fuel system. |
2. Clean system and replace fuel filter. |
| 3. Blown cylinder head gasket. |
3. Replace cylinder head gasket. |
| 4. Low compression. |
4. Refer to CYLINDER COMPRESSION TEST
. |
| 5. Burned, warped or pitted valves. |
5. Replace as necessary. |
| 6. Plugged or restricted exhaust system. |
6. Inspect and replace as necessary. |