TM 10-3930-659-20 4-3. TROUBLESHOOTING SYMPTOM INDEX (Con't). Troubleshooting Procedure Page ENGINE SYSTEM Abnormal Engine Noise............................................................................................................................. 4-12 Engine: Does Not Develop Full Power ....................................................................................................... 4-10 Emits Excessive Exhaust Smoke: Black..................................................................................................................................... 4-11 Blue ...................................................................................................................................... 4-12 Gray...................................................................................................................................... 4-11 White .................................................................................................................................... 4-12 Full Power Not Developed ............................................................................................................ 4-10 Misses .......................................................................................................................................... 4-9 Noise Abnormal ............................................................................................................................ 4-12 Oil Pressure: High ...................................................................................................................................... 4-13 Low ....................................................................................................................................... 4-12 Stalls ............................................................................................................................................ 4-9 Surges.......................................................................................................................................... 4-9 Turns Over But Will Not Start ....................................................................................................... 4-7 Exhaust Smoke Excessive: Black..................................................................................................................................... 4-11 Blue ...................................................................................................................................... 4-12 Gray...................................................................................................................................... 4-11 White .................................................................................................................................... 4-12 Fuel Consumption Excessive........................................................................................................ 4-13 Oil Pressure: High ...................................................................................................................................... 4-13 Low ....................................................................................................................................... 4-12 PROPELLER SHAFT Front Universal Joints, Excessive: Noise .................................................................................................................................... 4-16 Vibration ............................................................................................................................... 4-16 Noise, Excessive: Support Bearings ............................................................................................................. 4-16 Support Bearings, Excessive: Noise .................................................................................................................................... 4-16 Vibration ............................................................................................................................... 4-16 Vibration, Excessive: Front Universal Joints ........................................................................................................... 4-16 Support Bearings .................................................................................................................. 4-16 4-3