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    2003 GMC Truck Safari Van AWD 4.3L SFI OHV 6cyl

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    Exhaust System

    Exhaust System Operation:

    The tubing, mufflers, and catalytic converters that direct exhaust gases from the engine to the atmosphere.

    How To Instructions:

    Inspect - Check for obvious problems.
    Test - Give it an in-depth diagnosis.

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