new here, and hoping to get a little help on my truck. i just got done doing the oil cooler o-rings on my truck. i cleaned the coolant system and replaced the o-rings on the h-pop. i drove my truck the last 3 days for around 10 min cleaning the coolant system. today after adding antifreeze and all i drove my truck to work. i went to leave for lunch and it hydro locked and took about 5 turns of the key to get it to crank over and it started. i left work with a small amount of a hesitation like it was going to hydro lock. i drove home and everything seemed fine. i got home and it sat for maybe 30 min and i went to go to the store, and it hydro locked again very slightly and then my truck started smoking a whitish blue smoke more white then blue. sound like it has a slight miss and the smoke will not clear up. it looks like i have oil in my exhaust and small little bubbles on my dipstick when i checked the oil. im thinking it has something to do with the injectors. what are your thoughts.

thanks in advance for any info.

 

What motor is this? I assume a 2000 7.3 based on some of your info.

Sounds like a possible cracked nozzle, or dead hole(cracked piston, etc.)

Have you done a quick check for blowby by flipping the oil fill cap over and setting it atop the fill? It shouldn't have any pressure to lift it off, it should just sit there.

This is all assuming what motor you have though, if I'm correct I would try posting in the 7.3 forum. https://www.ford-trucks.com/forums/forum31/

 

Might help to post what kind of truck we're talking about here.

Beaten to it, nevermind!

 

I assume you have a 6.0 diesel?
Hydro locking is a serious issue, you shouldn't be trying to start it.
Engines have been completely trashed from hydrolocking.
It is possible you might have wrecked it much worse than it was.

I think now is the time to seek expert help before things get out of hand.

Welcome, BTW.

I don't know what happened, but you better make sure your crank case isn't filling up with coolant. That could be the end of that engine.

If antifreeze is missing, or draining into the engine, I'd drain it out, then drain the engine oil and refill with fresh oil, just to keep everything in as best shape as possible.

 

sorry i thought i posted that, im a little upset right now. i have not done any worse damage as in bending a rod or anything. but it is a 00 7.3 and that is the weird part is that im not seeing any fluid loss. i lost about an inch on the overflow on the way to work topped it off and never lost any on the way home. oil is brand new less that 100 miles on it changed when i did the oil cooler o rings. i just started it and took it for a drive and the white smoke cleared up it kinda smells like a paper factory coming out of the exhaust. im not sure weather its oil or water or fuel getting in the cylinder. its a funny smell. i can smell antifreeze leaks in cars that im driving behind or if oil of fuel is getting burnt. but that is in gas motors not sure but i believe it would smell some what the same. that is what is confusing me the most i don't know what fluid is filling the cylinder-'s. hope this helps it has a little over 200,000 on it its chipped 4" exhaust k&n. the truck still has tons of power but it seemed to miss a little or have a hick up when i first started it the last time i drove it about 2 miles down the road and back and it ran fine. oil is good i checked that to make sure it's not filling up with antifreeze or fuel. now there is just a slight amount of smoke and a paper mill smell.

 

I don't know what a paper mill smells like, but if there was that much fluid in your engine, some should be in the tailpipe just waiting for you

 

i checked and it looked like oil and had the viscosity of oil. but i would think it would have smelled allot more like oil and been allot more blue. so i though it might have been antifreeze mixing with all the soot in my exhaust. and now its pretty much all cleared up so i have no idea. it just seems funnie it would do it after i changed the oil cooler orings.

by the way BigAlsPSD how did you guess it was a 00. is there something different about a 00 that i don't know about that would cause this rather than other years?

 

How does an engine hydrolock "slightly"? I thought everything just stops rotating dead in its tracks...

Did you check for blowby per Alan's suggestion? It is normal to have to add coolant after the first drive when the coolant is changed/flushed. By any chance...did you flush out your coolant? If so, how did you do that exactly? Did you use a flushing T?

 

Did you get all the coolant back in ?

I can't remember how much it should take, but I airlocked my 7.3 once filling the coolant, and lucky I didn't blow it, I was a gallon short I think.

You have to pour it soooooo slow for it to all go in.

 

well there is some steam coming out of the valve cover not enough to actually lift the lid but i can see it. but i checked my water level still good but there is water making the oil turn white in the valve cover or maybe the air i see coming out is steam and that is turning the oil white. and the oil is starting to turn light brown. and the slightly hydro locking is when the motor turns over and acts like the starer dies for about .5 second then kicks back on. you hear a hesitation but that is it. and flushing it i just drained the fluid filled up back up with water, ran it down the road for 10 min came back drained it filled it back up and repeated that around 5 times. and i think i have about 6 gallons in it the auto place said it took 8 i figured there could be 2 trapped in the motor but its never got hot at all i diligently watch my gauges all the time every 20 sec or so i look at everything.

 

If I was you;

1. Drain coolant.

2. Drain oil.

3. Fill with fresh oil.

4. Re assess situation, find experienced help.

 

Maybe it is possible, that one of the o rings you replaced got damaged, coolant got in the oil, boiled and sputtered, anded up exiting through the crank case vent, into the intake.

I've never replaced those o rings you did, so I don't know what could have gone wrong, but this seems like maybe that has something to do with it.

Was this issue present before the oil cooler was pulled?

 

And I'll just throw this out as speculation;

When oil and coolant mix, it's jelly and frothy, if it was inhaled into the intake, maybe as the truck sits there it slowly slimes down the tube walls into the engine.

I don't know, just speculating.

I would not continue running it with fluid in the oil though. That would be where I'd throw in the towel before "crate motor" gets mentioned.

 

Chocolate milkshake is water in the oil. Is that what you are describing? If so, you can try a quick test if you have an electric hot plate....plug it in and set it to 350 degrees. Prop the plate at a slight angle (20-30 degrees). Obtain an oil sample and slowly pour it onto the hot plate and watch for little boiling bubbles. If you see some, then you should stop running the engine until you have corrected the issue.

Common causes for water in the oil is faulty oil cooler, cracked injector cups and even pinholes in the front cover.

 

Some oil vapor is normal...may be more noticable in cooler weather. The oil should appear black or very dark...like coffee.

Cooling system takes just slightly over 8 gallons...1 gallon remains in the system even when the block plugs are pulled.