Fuel Tank Leak Test: Description
The 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 the cause of a rattle at the fuel tank.
CAUTION:
Place a dry chemical (Class B) fire extinguisher near the area before performing leak check. Before removing fuel tank for a suspected leak, ensure that fuel pipes or tubes are not leaking onto tank. Once removed, ensure that fuel is not leaking around the fuel sender "O" ring. Failure to follow these precautions may result in personal injury.