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Porsche
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1990
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928 S4 V8-4957cc 5.0L
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Repair and Diagnosis
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Automatic Transmission/Transaxle
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Slips In 1ST & 2ND Gear
Slips In 1ST & 2ND Gear
1.
Faulty shift valve B 2.
2.
Faulty brake band B 2 piston.
3.
Incorrectly adjusted brake band B 2.