Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello, my name is***** codes are all unrelated. P0442 and P0496 would be caused by a failed purge solenoid. P0128 usually means the thermostat has failed. P0014 usually means the Variable Camshaft Timing (VCT) Solenoid has failed but can also set if oil is dirty or low. Let me know if you have more questions or if there is anything else I can do to help. Thanks.
When you replaced solenoid did problem go away? If so, how long? Thanks.
It is the only solenoid so if oil level is clean and full then the solenoid probably needs to be replaced again. Keeping up on oil changes is important with keeping timing system working correctly. I think you should be able to make all of above repairs yourself without any problems. Let me know if you have more questions, thanks.
I would clear codes and see if that helps, it will likely take care of P0014 but not the other codes. Solenoid should be good yet. Let me know if you have more questions, thanks.