2009 Cobalt LT - Codes P0011 P0013 P0016
Iíve got all of these codes popping up, P0011 P0013 and P0016 and I canít figure this out.
I replaced the Exhaust actuator solenoid but no change,
I canít get the crank sensor to change it because they made it resiculoisly difficult to get to,
I tested resistance on cam position sensor and got 1400 ohms but I canít find out if thatís in spec or not,
Then I took off valve cover and inspected timing chain and itís slightly loose but I donít think it could jump gears.
My cobalt is making a slight tapping or knocking noise and when I leave it run for about 5 minutes it starts screeching like a metal to metal noise and sounds horrible when I shut it off.