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CONDITION POSSIBLE CAUSE CORRECTION ENGINE LOSS OF POWER 1. Dirty or incorrectly gapped spark 1. (Refer to 8 - ELECTRICAL/ 2. Dirt or water in fuel system. 2. Clean system and replace fuel 3. Faulty fuel pump. 3. Refer to the Appropriate 4. Blown cylinder head gasket. 4. Replace cylinder head gasket. 5. Low compression. 5. (Refer to 9 - ENGINE - 6. Burned, warped or pitted valves. 6. Replace as necessary. 7. Plugged or restricted exhaust 7. Inspect and replace as 8. Faulty coil. 8. (Refer to 8 - ELECTRICAL/ ENGINE MISSES ON 1. Spark plugs dirty or incorrectly 1. (Refer to 8 - ELECTRICAL/ 2. Dirt in fuel system. 2. Clean fuel system. 3. Burned, warped or pitted valves. 3. Replcae as necessary. 4. Faulty coil. 4. (Refer to 8 - ELECTRICAL/ ENGINE MISSES AT HIGH SPEED 1. Spark plugs dirty or incorrectly 1. (Refer to 8 - ELECTRICAL/ 2. Faulty coil. 2. (Refer to 8 - ELECTRICAL/ 3. Dirt or water in fuel system. 3. Clean system and replace fuel 9 - 886 ENGINE - 4.7L SERVICE INFORMATION ND |