My check engine light is staying on and my trailblazer is making a loud noise and shuts off

Hello, noises are difficult to discern without hearing them - so I'd recommend having a shop and technician near you hear the concern and weigh in on how to pursue the root cause of it. As far as the check engine light, a diagnostic test that will retrieve diagnostic trouble codes (DTC's) from the engine's processor will help figure out what's going on to determine the root cause of the concern. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops