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P0455 Cadillac - larg leak

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the check engine is on . it gave the code 0455 evoborative amenition system ( larg leak )

Vehicle: 2003, Cadillac , escalade , 6.0

1 Answer

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check your gas cap

Possible causes
- Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking
 

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