Symptom Diagnosis

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 GMC Sierra, 2002 Chevrolet Suburban, and 2002 Chevrolet Silverado. 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. See Fig 1-Fig 81 . If a listed symptom matches the customer's concern, check the applicable items for possible cause.

Fig 1: Transmission Fluid Leaks (1 Of 2)

G00075839

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Fig 2: Transmission Fluid Leaks (2 Of 2)

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Fig 3: High Line Pressure

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Fig 4: Forward Motion In Neutral

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Fig 5: Inadequate Lubrication At Low Line Or Heavy Loads

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Fig 6: Inadequate Lubrication

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Fig 7: Engine Stall In Neutral

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Fig 8: Loss Of Power

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Fig 9: No Torque In Reverse & 3rd Gear

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Fig 10: Transmission Overheats

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Fig 11: Transmission Overheats At Wide Open Throttle

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Fig 12: Low Line Pressure

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Fig 13: Engine Starts In Gear

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Fig 14: Shift Lever Indicates Wrong Gear

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Fig 15: No Gear Selection

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Fig 16: Loss Of Drive (1 Of 2)

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Fig 17: Loss Of Drive (2 Of 2)

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Fig 18: No Park

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Fig 19: Remains In Park

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Fig 20: Difficult To Shift Out Of Park

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Fig 21: Does Not Stay In Park

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Fig 22: No Reverse

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Fig 23: No 1st Gear - "D1"

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Fig 24: No 2nd Gear - "D1"

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Fig 25: No Overrun Braking - "D1"

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Fig 26: No Engine Braking - "D1"

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Fig 27: No 1st Gear - "D2"

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Fig 28: No 2nd Gear - "D2"

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Fig 29: No Overrun Braking - "D2"

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Fig 30: No Engine Braking - "D2"

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Fig 31: No 2nd Gear Engine Braking - "D2"

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Fig 32: No 1st Gear - "D3"

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Fig 33: No 2nd Gear - "D3"

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Fig 34: No 3rd Gear - "D3"

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Fig 35: No Overrun Braking - "D3"

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Fig 36: No Engine Braking - "D3"

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Fig 37: No 1st Gear - "D4"

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Fig 38: 1st Gear Only - "D4"

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Fig 39: 1st & 2nd Gear Only - "D4"

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Fig 40: 2nd Gear Only - "D4"

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Fig 41: 2nd & 3rd Gear Only - "D4"

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Fig 42: 1st & 4th Gear Only - "D4"

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Fig 43: 3rd & 4th Gear Only - "D4"

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Fig 44: No 2nd Gear - "D4"

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Fig 45: No 3rd Gear - "D4"

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Fig 46: No 4th Gear - "D4"

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Fig 47: No Torque Converter Clutch Apply

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Fig 48: Soft Torque Converter Clutch Apply

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Fig 49: Torque Converter Clutch Slipping

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Fig 50: Torque Converter Clutch Stuck On

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Fig 51: Incorrect Torque Converter Clutch Apply Or Release

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Fig 52: Converter Ballooning

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Fig 53: No Torque Multiplication

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Fig 54: Fluid Foaming

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Fig 55: Noise

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Fig 56: Engine Stall

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Fig 57: Vibration

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Fig 58: Oil Out The Vent Tube

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Fig 59: No Torque In 2nd Gear

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Fig 60: 2nd Gear Starts

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Fig 61: 3rd Gear Starts

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Fig 62: 4th Gear Starts

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Fig 63: Erratic Shift Quality

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Fig 64: Transmission Slips

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Fig 65: Case Extension Bearing/Seal Failed

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Fig 66: Inaccurate Shift Points

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Fig 67: Harsh Shifts

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Fig 68: Harsh Shift "D" To "R"

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Fig 69: Harsh Shift "3" To "4"

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Fig 70: Harsh Shift "4" To "3"

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Fig 71: Harsh Shift "D4" To "D3", "D2", Or "D1"

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Fig 72: Soft Shifts

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Fig 73: Soft Shifts Into "R"

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Fig 74: Soft Shift "R" Into "D"

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Fig 75: Soft Shift "2" To "1"

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Fig 76: Soft Shift "2" To "3"

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Fig 77: Soft Shift "3" To "2"

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Fig 78: Soft Shift "D3" To "D2"

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Fig 79: Delayed Shift "1" To "2"

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Fig 80: No "D2" To "D1"

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Fig 81: No "D3" To "D2"

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