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: 03 cummins bad idle - YouTube My truck didn't use to sound like this and it started somewhat recently, within the last 3,000 miles. The idle sounds super choppy, like you can hear a knock through the exhaust but you can't hear any knock at the motor. Truck still feels like it has plenty of...

I have the video but you can't really see the smoke. I called my mechanic and he said what I described isn't too big of an issue. It's not constant smoke just tiny puffs of thin white smoke. Any ideas on what I can do to fix this besides injectors? I need new ones but can't afford them at the...