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GMC
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1996
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Forward Control 7.4 J
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/O Codes - Diesel
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Symptoms
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Engine Will Not Shut Off With Key
Engine Will Not Shut Off With Key
SYMPTOM - ENGINE WILL NOT SHUT OFF WITH KEY
Possible Cause
Correction
Injection pump fuel shut-off solenoid does not return to off position
Check solenoid operation; see SYSTEM/COMPONENT TESTS article