2007 Chevrolet Silverado 1500 Classic WT 5.3L MIL Lamp on
Vehicle failed emmission for converter not running test customer was told to drive 150 more to let test run before retesting,by then code p0422 came back and still did not run converter test either,perform smoke test found no evident leaks check voltage a vent...
FIX posted 3/6/2016
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Vehicle Data2007 Chevrolet Silverado 1500 Classic WT
Trouble Codes
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Vehicle Data
2007 Chevrolet Silverado 1500 Classic WT
VIN | 1GCEK19B17 |
Engine | 5.3 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Intermittently |
Trouble Codes
P0422 | Catalyst Efficiency Below Normal (Bank 1) |