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Home >> Isuzu >> 1997 >> Trooper LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Fuel System >> Fuel Tank Leak Check
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Fuel Tank Leak Check

CAUTION: Before attempting Fuel Tank Leak Check, place a dry chemical (Class B) fire extinguisher near work area. Before removing fuel tank, ensure fuel hoses and fuel sender gasket are not leaking onto tank.
  1. Relieve fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE in REMOVAL, OVERHAUL & INSTALLATION. Remove fuel tank. Plug filler neck, vent hoses and fuel lines.
  2. Install short piece of fuel line on fuel tank meter vent tube. Apply approximately 1-1.5 PSI (7-10 kPa) of air pressure to tank through vent tube. Test suspect area with soap solution or by submersion. If leak is found, replace tank.
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