2006 smokes more

[Bouma]

I have a stock 06. No electronics, just exhaust and intake. The truck runs good. It just seems to smoke a little more. This is my first Cummins. I now have 56,000 miles on it and bought it new. I can start it up after it sitting all night and I get a small puff and thats it. I them back out and go to pull out of my drive way and you can see a little black smoke till the turbo comes up. It seems like this is normal, but I just don't remember it doing this when new. I also notice it will blow a puff of smoke it I put my foot in it hard to get around someone. I don't drive it hard at all, I also wait to get up to temp before I drive hard. This might just be in my head, the MPG'S are good.

 

[BDaugherty]

When new, the CAT will filter out some smoke that you might otherwise see. With your exhaust, you will see a little more. Also, you may need to clean/replace your air filter.

 

[Bouma]

I thought about the air filter too. I cleaned it, but it was fairly clean anyways. I am sure it's nothing. Just thought I would ask the question! I plan to keep this truck a long time, if it needed something I was going to do it. Would some fuel additive help?

 

[Wingate]

mine does it too... . It didn't do it before I changed the exhaust. When i installed the new exhaust, I didn't reinstall the cat. Typically, the cat would catch the particulates then burn them off when I got up to operating temp going down the road (so I didn't see if unless I went to WOT) There isn't a cat to catch them now, so I see a small amount of smoke at first startup.