How to fix camshaft position system performance bank 2?

Hi this is Dusty, I'm one of the auto experts on RepairPal's Car Genius team! Uh-oh, sorry to hear about the troubles with the Blazer. A quick search actually returns a document that points to the Camshaft Position Actuator Park Lock Solenoid Valves as possible suspects due to: the valves either sticking or coming apart. If this is found to be the case, Chevrolet recommends replacement of both solenoids. There could be other causes as well, a first hand diagnosis by a competent professional would be the best course of action. They'll have access to the diagnostic tools, data, and skills to make quick work of this for you. If you have any other questions or would like to help with finding a RepairPal Certified shop in your area, give us a call! 877-913-1554