Mike's Workshop Manuals
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GMC
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1993
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Forward Control 7.4 N
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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
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Symptoms (Diesel)
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Engine Will Not Idle
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Possible Cause
Possible Cause
- Linkage binding or misadjusted.
- Restricted air filter.
- Defective injection pump.