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Chevrolet
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1991
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Step Van 7.4 N
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Engine Controls - Tests W/O Codes
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Symptoms (Diesel)
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Engine Will Not Shut Off With Key
Engine Will Not Shut Off With Key
ENGINE WILL NOT SHUT OFF WITH KEY
Possible Cause
Correction
Injection pump fuel solenoid does not return to off position.
Check solenoid operation. See I - SYS/COMP TESTS article.