Quick question

[kclough]

Here in Illinois the temps have been getting low enough to start letting the truck warm up. Well it just reminded me to ask this. Once it starts to get cold the truck will give a real small puff of white smoke it has done this since I bought the truck in February. When I mean small it is a puff at start up then goes away, the truck only does this when the motor is cold and sits overnight other than that it never does the white smoke.

[Galaxie]

Doesnt sound like an issue. Cold start can give you many colors. Diesel can smoke in the following colors: black, white, gray, blue.

[kclough]

Ok I figured it was probably not an issue but I saw a post about this and just wanted to make sure thank you

[Jacob@DP-Tuner]

Small amount on cold start-up is nothing to be worried about. Diesel needs fuel and air to run, compression and heat cause the combustion. So in a cold cylinder, you don't get the needed heat when first fired to get a complete burn, hence the white smoke. You may want to test your glow plug relay and the glow plugs themselves to ensure everything is functioning as it should before the weather turns real cold.