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GMC Truck
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2007
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Sierra Classic 1500 4WD V8-6.0L
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Repair and Diagnosis
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Maintenance
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Service Intervals
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Severe Service
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100000 MI or 160000 KM
100000 MI or 160000 KM
Inspect
Ignition Cable
Inspect spark plug wires.
Replace
Spark Plug
Fluid Filter - A/T
Fluid - Transfer Case
Automatic Transfer Case Only
Fluid - A/T
Change automatic transmission fluid and filter.