Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Po420 would be the rear catalytic converter or right engine side toward the firewall. If you truck is setting cam shaft position codes and you have a 3.6 engine you need too have the timing chains replaced. Please give a positive rating. Thanks
Thanks former the info. On your truck you only have 1 cat converter and its toward the rear of the engine towards the firewall. I don't don't part numbers but if the cat fits and has to correct metals inside it wil work. As far as the camshaft position codes if make sure the oil is full and if so you'll need camshaft actuator and solenoids to repair. Thak
Very technical repair. Amateur in this field will Need all special holding tool to set the timing. The solenoids are on top the valve cover at the front of the engine, the actuators are under the valve cover front of the camshaft.