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1993
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Cutlass Supreme FWD V6-3100 3.1L MFI VIN M
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Repair and Diagnosis
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Transmission and Drivetrain
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Automatic Transmission/Transaxle
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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4T60-E Automatic Transaxle
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Harsh or Soft 3-4 Shift
Harsh or Soft 3-4 Shift
1. Incorrect oil pressure.
2. Accumulator cover and pistons seal damaged or springs missing.
3. Check ball No. 10 improperly located.
4. 3-4 accumulator valve stuck.