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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control Module (ECM) Diagnostic Trouble Codes - 7 Of 11 >> ECM-4308: Leak Diagnostic. Major Leak. Permanent Fault (B6284T; B6304S3; 1999) >> Major leak. Intermittent fault >> Checking hoses and pipes

Checking hoses and pipes

Check that the fuel tank filler cap is on properly and that its seal is intact.

Check that the hoses and hose connectors at the EVAP canister and fuel tank are not leaking or pinched.