Truck giving out black smoke, mark on trailer corner

This would go in the garage section of the forums, What kind of engine? what year? how many miles? Our Cats and Detroit's smoke alil in colder weather but not much after warm up.

 

What year,model etc? More info? Any computer codes? This is simplest thing,but is it running a little choppy,slightly underpowered? May sound dumb if youve already checked but,is the sight glass over the fuel filter filled with fuel up to the top of the filter. IF SO change the fuel filter.

 

dirty air filter, ATA leak.

 

A lot of us would really like to help you. But with the lack of information as pointed out in the replays its impossible to help you.

 

Any one else here remember when we would have the pumps on our 425 Kitty's turned up alittle amd every time you'll let off to shift and put your for back in you would see black smoke pouring out both stacks for a few good seconds?

On these newer engines you've probably got a clogged air cleaner.

 

Change the fuel filter.

 

I remember working as a tech in my early years and a driver would bring the truck into the shop to have pump work done because his buddies truck smoked more than his. "hey mechanic, can ya make mine smoke like his?"

 

It was a beautiful sight to behold.

 

It sure was I still drive one of the ones I drove it's a 93 with a 15 I don't know of it ever being rebuilt but it does t burn any oil and it will run on down the road. She really is old faithful. I could leave Henderson and run up to Lake City, PA. (Up by dreary Erie) and come back on a tank of fuel (150 on each side topped off)