Diesel Data
: Automotive Repair
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Chevy Truck
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1989
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S10/T10 Blazer 4WD V6-173 2.8L
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Manufacturer Code Charts
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DTC 28
DTC 28
Code 28 (Erratic Speed Sensor Signal, Two Dropouts Above 20 Mph).:
