So i replaced injectors, fuel lines and the entire filter housing with every last stupid sealing washer, Lift pump, overflow valve. Deleted fuel heater. Replaced the relay on my fuel shutoff solenoid. I do not loose coolant and there is no fuel in my oil. I just did my own timing job and set it to stock pin time. I get a small plum black smoke when i start it cold or warm, Then while warm it does the same a bit of black then a bunch of white as I accelerate harder. No white smoke at idle, on load acceleration more then 50% down on the pedal . Same with it in park black then as it gets more pedal turns to grey/white. The only other thing i can think of is to replace the fuel shut off solenoid itself. Is this a sign its probably something worse then the simple fixes? Posted here a few months ago and did literally everything I could find to try and fix this still little change in the smoke. Truck has 210,000 miles on it. Could this be the injector pump getting tired? Is there a decent way to rebuild it or do I need to make this my next investment on the truck thanks! any Ideas would be very appreciated.

 

is there a stumple when it starts smoking. does it break up when you free rev it or does it rev up smoothly?

 

It does not stumble. Revs up like it should wouldn't even know it was blowing white smoke unless your like me and use mirrors to watch it. Sits at 2k rpms at 65 and only in park above 2500 rpms while park will puff white smoke then just no smoke after a second or two. While driving I get no smoke unless I really get on it and its a mix like grey smoke when I am near flooring it but only right at take off, not after

 

I'm going to say it is timing , it had to have slipper, or the injectors are no good ... Those would be where I would start, try re-pinning the pump and the crank, if either won't pin, its off ... As they should be able to pin at the same time..

 

if it were slipped timing it would shudder when you rev it up. it very much sounds like a or a few leaky injectors. white smoke is improperly injected fuel. so if you have a few injectors that wont build pressure and are injecting way early you will see noticable amounts of white smoke.