A7 - Fuel Tank System Flow Test

CAUTION: Failure to remove fuel tank filler cap may result in damage to fuel tank.

^ Remove fuel tank filler cap from fuel tank filler pipe.

CAUTION: Do not use other high-pressure air supplies. Damage to fuel tank may result.

Vapor Flow:

^ Install hand pump and pressure gauge onto tee or fuel vapor canister nipple at test point B2.

^ Hand pump to a maximum of 17.2 kPa (2.5 psi).

^ Does preesure drop to zero Immediately?

YES -- System OK, no servicing required.

NO -- Perform pinpoint test step A4. A4 - Vapor Hose Inspection