7.3 liter diesel
 

When i get on my 7.3 every once in a while it will kinda white smoke, it has 176,000 on it and doesn't black smoke a drop, what could be causing it?

Does it feel like it is missing while you see the white smoke?

White smoke is unburnt fuel. You could have a loose UVCH on one side. Check all the wires going over the VC to make sure no chaffing is going on. Could be injectors.

black smoke is unburnt fuel in a diesel not white, white usually is coolant leak

If he had a 6.0, yes...

Since this is a 7.3, you may have an injector that's headed south or your UVCH may be coming loose.

You may also need some new o-rings on your injector. Depending on how old it is, you may just replace the injector with a reman one from Clay: Riffraff Diesel: Stock Rebuilt Injectors

Its has plenty of get up and go power and has never smoked, how could i figure out which injector to replace? Or just replace all 8? I just rebuilt the hpop and put new o rings on lines and fuel housing, and what is the UVCH?

Scroll down to Buzz Test.
Powerstroke

i just read it but it doesnt tell us how to do the buzz test? my dad would like me to do this but i dont know how?

Black smoke is poorly burnt fuel, white smoke is unburnt fuel on our 7.3

Apparently you need a scan gauge that performs the buzz test. You can search on Youtube "7.3 injector buzz test" and get an idea of what's going to happen, what to look for, codes and whatnot.

rokinfarmer, where in texas are you located?

And what can i do to stop it from black smoking?

Im in galveston

If your truck can make it, I can meet you somewhere around FM 1960 or somehwere in Katy.

Always armed with an AE....

When my truck is just at an idle i smell raw diesel so what is causing that?

Raw diesel at the tailpipe, in the cab, or standing in front of the truck?