Symptom Diagnosis

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Perform PRELIMINARY INSPECTION prior to diagnosing by symptom.

NOTE: Use the following symptoms to aid in preliminary diagnosis. If a listed symptom matches the customer's concern, check the applicable items for possible cause.

Fig 1: Automatic Transmission Fluid Leaks (1 Of 2)

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Fig 2: Automatic Transmission Fluid Leaks (2 Of 2)

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Fig 3: Incorrect Line Pressure

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Fig 4: Delayed Park To Reverse/Drive Engagement

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Fig 5: Harsh Park To Reverse/Drive Engagement

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Fig 6: Slips In Drive Or No Drive

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Fig 7: Slips In Reverse Or No Reverse

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Fig 8: Locked Up In Drive/Reverse

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Fig 9: No Park Range

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Fig 10: Harsh Or Soft 1-2 Shift Feel

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Fig 11: Harsh Or Soft 2-3/3-2 Shift Feel

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Fig 12: Harsh Or Soft 3-4/4-3 Shift Feel (1 Of 2)

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Fig 13: Harsh Or Soft 3-4/4-3 Shift Feel (2 Of 2)

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Fig 14: High Or Low Upshift Or Downshift Speed

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Fig 15: 1st & 2nd Gear Only (2-3 Solenoid Stuck On)

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Fig 16: 1st & Forth Gear Only (1-2 Solenoid Stuck On)

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Fig 17: 2nd & 3rd Gear Only (1-2 Solenoid Stuck Off)

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Fig 18: 3rd & 4th Gear Only (2-3 Solenoid Stuck Off)

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Fig 19: 1st Gear Only

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Fig 20: 2nd Gear Only

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Fig 21: 3rd Gear Only

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Fig 22: 4th Gear Only

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Fig 23: Slipping Or No 1st Gear

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Fig 24: Slipping Or No 2nd Gear

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Fig 25: Slipping Or No 3rd Gear

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Fig 26: Slipping Or No 4th Gear

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Fig 27: No Engine Braking In Manual 2nd Or Low Range

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Fig 28: Whine Noise Varying With RPM Or Fluid Pressure

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Fig 29: Popping Noise

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Fig 30: Buzz Noise Or High Frequency Rattle Sound

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Fig 31: Whine/Growl Noise That Changes With Vehicle Speed

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Fig 32: Final Drive Noise Or Hum Noise

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Fig 33: Noise In 1st, 2nd, 3rd Or 4th

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Fig 34: Noise In Random Ranges

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Fig 35: Abnormal Noise In Park Or Neutral

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Fig 36: TCC Stuck On In All Gears

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Fig 37: TCC Stuck On In 2nd, 3rd & 4th Gear

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Fig 38: Harsh TCC Apply Or Release

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Fig 39: TCC Apply Rough, Slips Or Shudders

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Fig 40: No TCC Apply

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