Mike's Workshop Manuals
: Service manuals for every vehicle
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Chevrolet
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1983
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Chevette Base, 2D Hatchback, 1.8 D, Standard
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Repair and Diagnosis
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Transmission
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Automatic Trans
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Overhaul - 180C/3L30
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Testing
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Control Pressure Test Results
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Control Pressure Too High
Control Pressure Too High
Modulator vacuum line leaking or interrupted.
Failed vacuum modulator.
Vacuum leak in engine or accessory vacuum system.
Pressure regulator valve malfunction.