v6 engine

I've replaced the sensors, distributors, cap, wires, plugs, cam sensor, crank sensor, as far as electrical goes. I don't know if the problem is electrical or not. When I try to start it it fires but will not start. The computer is fine, as far as I know, but I don't know if it might a rehab...

Hello Forum: Looking for any feedback/advice. I just recently leased a 2013 GMC Terrain with a V6 VVT 3.6L engine. My previous vehicle was 2012 Buick LaCrosse with a 3.6L V6 VVT (same exact engine as far as I know). I don’t remember the engine being as loud/noisy on the LaCrosse. I seem to...