Question

P1442 Chevrolet - 2005 silverado 1500 V6 evaporative system dia.?How do I find the leak?

Answer 1

P1442 Evap vacuum switch high voltage

The code you should have would be P0442, Chevy does not use P1442

P0442 Evaporative emission small leak detected

Check and inspect the fuel cap if it is worn and the seal show any crack , replace the fuel cap.