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2004 Cadillac DeVille 4.6L MIL Lamp on
Posted to GM Driveability on 4/6/2010 25 Replies

Okay Caddy masters, this deville is driving me crazy. The code is P0455, and before the check engine light comes on it will read "check gas cap", and this fault returns within 10 miles of clearing it. So far I have of course replaced the cap, I have also repla...

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  Related Documents & Media  2004 Cadillac DeVille

 
Message Closed w/FIX

car Vehicle Data

2004 Cadillac DeVille

VIN 1G5TR4EDF4
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0455EVAP System Very Large Leak Detected
Message Closed w/FIX

car Vehicle Data

2004 Cadillac DeVille

VIN 1G5TR4EDF4
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0455EVAP System Very Large Leak Detected