d22019

I was wondering if you guys could answer a few questions for me. I searched but I couldn't find anything exactly like my situation. During the past two weeks my truck has developed a bad hazing problem, It makes an excesive amounts of gray smoke idling and it doesnt matter if its hot or cold.I cleaned the stuff in the AFC housing,ran some diesel kleen ,and put a bhaf on it but it had no effect. Also when under a load it puts out massive puffs black,gray,white, blue smoke not a steady stream . I don't have fuel dilution in the oil, and the turbo isn't leaking oil. It still has great power, it just smokes a lot and i'm out of ideas.
Thanks in advance.

wannadiesel

Pull the downpipe and look for oil, it sounds like turbo seals.

dzl_damon

Funny you ask. Mine is doing the exact same thing... light load/acceleration (that I'm purposefully not spewing black smoke) it will haze a grey stream behind me. I have (old numbering) DDPIII injectors which are supposed to be top notch with only 5,000 miles or less on them.

Blue is usually burning lube oil, but changing turbo's didn't change that, and my oil consumption is chocked up to leaking!

grey/white smoke is unburnt diesel which comes from:
a.) cold combustion chambers
b.) timing off (I think retarded, but may be wrong)
c.) air in fuel
d.) poor compression

I just got my B series Compression tester adapter in yesterday, I'm hoping a low cylinder doesn't pop up. Mine too makes great power. It will seem to clear up when it's good and hot, but just idling for a few minutes, or a 10 minute shut down and it will haze again.

I'll let you know my compression test results hopefully tomorrow afternoon.

wannadiesel

Could also be air in the fuel, but I'm betting you find oil in the downpipe.

d22019

Thanks for the fast replies. I forgot to mention that when I pulled the top off my afc housing there were little black metal particles down in there and I have the hot low idle dying problem. Is there anything in the pump that controls timing besides the ksb that would cause smoke like that? Also if I were to have a cracked injector tip,or a bad cylinder wouldn't there be massive amounts fuel in the oil? I'll pull the down pipe in the morning. It didn't occur to me to do that,I just stuck my finger in the tail pipe>

wannadiesel

It doesn't sound good for the pump. I am always hesitant to say "bad VE" because it's expensive and I don't want to cost people money. But stay close to home if the downpipe is dry - oh, and check the cold side too.

d22019

I kinda thought it might be pump related. Sometimes when you take the truck past 2100 or coast in gear,when you give it like 1/4 throttle and it will jerk real hard like the pedal was mashed to the floor and then go back to normal.

dzl_damon

eh... might be a VE going south if it starts hard hot. Try pouring some luke warm water over the casing when it's hot. If it starts right up for you, its time for a new IP or rebuild sadly.

d22019

Well the downpipe is dry and so is the cold side. I found a reman pump for 750 from us diesel parts,but i've never dealt with them.