Operation CHARM
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GMC Truck
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1998
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Envoy 4WD V6-4.3L VIN X
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Exhaust System
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Description and Operation
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Muffler Description
Muffler Description
The
muffler
controls the exhaust noise levels. The muffler is serviced with the
exhaust pipe
and tail pipe as a complete unit.