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1994
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Forward Control 7.4 N
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Engine Performance
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Engine Controls - System/Component Tests - 6.5L Diesel
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Fuel System
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Hard Start
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Additional Checks
Additional Checks
Check for no crank signal on scan tool
Check the Service Bulletins for control module software updates.
Fig 1: Diesel Glow Plug Circuit
Courtesy of GENERAL MOTORS CORP.
Courtesy of GENERAL MOTORS CORP.