Really bad thick white/blue smoke
 

A friend and i did the full power adjustment on his 93 tonight and everything went smoothly only went 1 turn got the truck running and reset the idle and everything was great. Driving home and the truck wouldnt build normal boost amounts and was very sluggish so first thought was bad fuel filter but turns out it wasnt. Wen driving i noticed heavy white/blue smoke and truck sputtered and had no power. We let the truck idle and tons of blue smoke but when revved it turned snow white but still smelt like diesel not oil or coolant so i checked lift pump and it was a steady drip and had zero prime pressure. It has a hard start with white smoke so my question is with the full power adjustment would this kill the lift pump from so much more fuel so rapidly? Its original with 330xxx miles or did something catastrophically go wrong that we havent noticed? Has anyone had this problem? Please help so stumped:argh::humm::td:

Check the turbo for oil leak

X2 :rocking:

Turbo is fine no shaft play or leaks

Well, shaft play does not necessarily determine whether or not the seal is leaking inside the turbo, I believe.

:humm: check your crank sensor

You guys are all STUPID. (Quote)i checked lift pump and it was a steady drip and had zero prime pressure. (Quote).

He's getting air in the fuel system and not enough fuel pressure you idiots lol sorry just really wanted to say you idiots. Anyway there's the problem. Ever have to bleed the injectors on your truck? When you do you get blue n white smoke.

That's was a given Josh.

Okay but it's NOT a turbo problem you guys. A bad seal will not cause it to run badly or smoke. I worked on a 90 with toast oil seals in the turbo, ran like a champ n never smoked. Started after sitting 2 years without the grids working it started easier then my p-pump and my truck at the time was warm.

yeah hes run it dry more than once and after bleeding injectors and getting it started it smoking blue/white but this problem got to the point where the truck would smoke out a 4 lane highway and causing dead stop traffic and i ended up towing him home. could this have caused any further damage or potentially hurt the IP?

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also would the sudden rapid increase in fuel kick the lift pump? he never had an issue until we did he full power adjustment and 10 mins down the road it all started

Sounds like it's sucking in air still to me. If it was already weak maybe but if it's leaking fuel I'd say it's def from getting air in the fuel. I say it's time for a new LP either way. I'd change it n if it still does it. obviously the LP is toast anyway. The pumps needs the fuel demand of the LP to keep em cool. If they don't get the fuel demand there not gonna last.

That's what a VE pump was designed to do, have better progressive timing advancing and better pressure at startup, period, plus other admirable qualities.

All it has that the p-pump doesn't have is timing advance. I can tap my pedal n she will start just as easy or easier then a VE.

I knew there was a air problem from the start, you have one if you have a leak period. I just assumed you were gonna repair and replace ASAP.

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Advancing the timing on a P-Pump is a good idea, just don't go too far and hurt your performance, just spoke to a fuel injection specialist about the VE pump and the P-Pump.

16.5* is where I want it set at.

As long as you know already. :)

Oh I do. Trust me I know these things inside n out. been around 1st n 2nd gems my whole life. Plus your VE won't catch me on the topend.

Oh, I found the injection pump rebuilder that could just about get it done with proper fueling mods as far as the LP goes. :rock: I already got the 900GPH fuel filter to do it with! :D



Just giving you a hard time Josh, I know the P-Pump is just about untouchable. :) I am really pleased overall with the VE pump so well, I will never mess with getting a P-Pump for my 1st Gens ever, just not worth all the losses to me. But I do want to P-Pump my Dad's 24 Valve if I ever get it. :D

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Sorry for the thread jack! :)

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I'm kind of used to having open conversations with people on the threads of other people cause a friend of mine owns a Aquarium Reef Forum by himself, so we pretty much do what we want on there, its pretty kool, sorry for the threadjack.

To be honest even with the mods my VE had I think my mildly modded non ic had more power. if both trucks had stock tires the 93 woulda destroyed the 90 I had. BUt Honestly I got my pump setup so well I get NO smoke at all n she lost a lil bit down low but passing power went way up with the p-pump. I have no complaints n isn't really any downfall over the VE except timing advance that's all. That would be a fun truck. If you can don't bother with a 160 or 175 horse pump there small fueling wise.

Thanks for the info. :)

lol yup.

welp just got done working on the truck got a new lift pump, fuel filter, oil change and bled all the air out of the lines. it wouldnt start. the fuel that squirt out of the injector during bleeding was pure white. it looked like someone dumper 10 gallons of milk in the truck. turns out the diesel was diluted with water (was free from a buddy) and thats what caused it to run like sh*t. we dropped the tank, drained it, completely dried out the fuel lines and injectors and started over wit 9 gallons of fresh diesel from the pump. after another hour of bleeding we got clean fuel. it started right up and ran better than ever before and more power than we can notice after the full power adjustment! glad to have his truck running again thanks everyone for their help!! much appreciated!

Well that will doit

PHUCK!!

You'll have that, nice to hear she's running
:jump:

now i have a problem with my own truck, after using 5 gallons of that fuel. i put the fuel in on Wednesday, everything was fine but after i put 60$ worth of fuel in from the pump, my water in fuel light stays on and when i rev my truck at around 1800rpm it back fires pretty loud but no odd colored smoke? anyone ever heard anything like this?

I would not run it with that fuel any more, with the water in the fuel when the IP pressurizes the fuel to inject it the water that is mixed in can very easily turn to steam due to the very high pressures in the IP, not good for your IP at all, steam makes a very poor lubricant :w2: . That and water doesnt burn too well, sux due to the ridiculous price of #2 fuel but cheaper than a new IP in the long run.

im gonna drop the tank tonight and see if any fuel is salvageable ill try seperating the water and fuel and sucking out all of the water

I had a new pump put on my 90, didn't want to start at all, it poured white smoke when cold, then when warm it just hazed blue and fuel smell burned your eyes, it sputtered and backfired, started a little better when warm, but sounded weird. People said sucking air, but a mechanic told me my timing was way off. I'm gonna try to adjust it and see.

i think its a lift pump on my truck when i cold start it, i have blue haze and little white. its stock lift pump with 210xxx miles i think it need replacing!

Prolly!

there is nothing small with a 160 or 175hp pump, they have a undisirable cam profile for making power over 4k rpms. nothing small about them at all and you will notice no difference with a bigger model pump.