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GMC
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1991
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Value Van 7.4 N
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Repair and Diagnosis
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Transmission
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Automatic Trans
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Diagnosis - A/T
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Service Bulletins
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Electrical Switches Test
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Notes
Electrical Switches Test: Notes
NOTE:
If CHECKING VOLTAGE TO TERMINAL "A" AT TRANSMISSION USING ALDL test passed, electrical switches are not causing a no lock-up condition. Check lock-up apply valve.