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Home >> Chevrolet >> 2002 >> TrailBlazer RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Fuel System (Diesel) >> Fuel Tank Leak Test (6.5L & 6.6L) >> Preliminary Checks
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Preliminary Checks

Diagnosis of fuel odor may be a condition of a leaking fuel tank, filler neck or filler cap. A defective filler cap, a plugged or pinched vent pipe can cause a collapsed fuel tank. Loose mounting straps or foreign material in tank may be cause of a rattle at fuel tank.