Vibrations at idle

[TheAutumnWind]

Cylinder deactivation? My 2015 work truck sure seems to run less smooth in V4 mode.

 

[GMCed]

My engine vibrates a bit at idle and in park. I've done quite a bit of investigating, and have done complete tune ups and changed the motor mounts. It still vibrates a bit. Engine idle is steady 500-550 rpm. I think it's normal, at this point.

It's a dirty throttle body you can clean it with throttle body cleaner from any auto store. Google procedure

 

[m1dn]

It's a dirty throttle body you can clean it with throttle body cleaner from any auto store. Google procedure

It’s going to be reviving old thread but wanted to say Thank You!
Had similar issues with new to me truck, ordered plugs and wires as usual with new used cars.
But then also noticed this thread and cleaned throttle body, truck now idles smooth and feels like it has muuuuch more power.

Will be still replacing wires n plugs once they come, but this is great advice.