 
				
	| 2005 Chevrolet Trailblazer LS 4.2L MIL Lamp on This Trailblazer came in with the check engine light on. Customer wanted it checked out because she was thinking of buying it. The person selling it said nobody could figure out why the light was on. It had a code P0455. I commanded The vent valve on and off w... 
                        
                            Summary posted 3/4/2012
                               
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 | Message Closed w/Summary 
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| VIN | 1GNDT13SX5 | 
| Engine | 4.2 L / 6 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Not Applicable | 
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) | 
| P0455 | EVAP System Very Large Leak Detected | 
Message Closed w/Summary
            
             Vehicle Data
 Vehicle Data
                2005 Chevrolet Trailblazer LS
| VIN | 1GNDT13SX5 | 
| Engine | 4.2 L / 6 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Not Applicable | 
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) | 
| P0455 | EVAP System Very Large Leak Detected | 
 14 Replies Received
14 Replies Received
 14 Replies Received
          14 Replies Received
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