at what temperature should i bake chicken on a traeger grill
1 Start your Traeger on smoke.. 2  After fire starts, set to high.â Preheat for 5 minutes. 3  Place whole chicken on grill and cook about 1 hour 20 minutes, or until internal temperature reaches 180 degrees.4  Remove from grill. After fire starts, set to high.â Preheat for 5 minutes. 2  Place whole chicken on grill and cook about 1 hour 20 minutes, or until internal temperature reaches 180 degrees. 3  Remove from grill. 4  Let rest 20 minutes before eating.