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2008 Buick Lucerne CXL 3.8L MIL Lamp on
Posted to GM Driveability on 11/28/2022 26 Replies

Hello everyone. I have this 08 Lucerne with a 3.8 that is kind of being a bugger. I'll start from the beginning in the order that all repairs were done and results after each repair. Costumer came in with a P0420 no other codes car running good and not...

26 Replies Received (View Replies)

  Related Documents & Media  2008 Buick Lucerne CXL

 
Message Closed w/Summary

car Vehicle Data

2008 Buick Lucerne CXL

VIN 1G4HD57228
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / MFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursP0420 & Evap System

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed w/Summary

car Vehicle Data

2008 Buick Lucerne CXL

VIN 1G4HD57228
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / MFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursP0420 & Evap System

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)