[latemodelracer2]

My truck is 100% stock and lately i have noticed at night that u can notice smoke from the rear of the truck comming from the exhaust. It isnt noticable during the day. You can look back and there is a noticable amount of smoke more at part throttle. Ive had 5 injectors replaced already under warranty along with a injector pump could i be about to need some more inector work? Power is down some but i was assuming it was due to winter blend fuel

 

[BudTX]

Black smoke, or smoke that you can see illuminated in the headlights of cars behind you at night?

If the latter, it is completely normal.

If you are worried about injectors, take your truck in and have the balance rates checked. As you know, bad injectors can cause white smoke.