Really Severe Oil leak.. and other problems

[levi_73]

My 2000 PSD with 68K got a sever oil leak a couple days ago... at first it was a couple drops a night and now it will lose a quart over night... It started running real bad as well bad knocking sound. When opening the oil fill lid the truck blows lots of white smoke out of it.. So does the exhaust at higher rpms or when cold. It is leaking alot on the passenger side. Not real sure where the leak is coming from?

up on top with a flash light and a small mirror and track it. Possibly hpop fittings.

[mech2161]

You have a cracked piston (my guess). Knocking noise and blowby are not a good sign. Look at the exhaust system and see if any oil is leaking at the joints.

[straycat]

99-03 7.3 oil leak diagnosis

This link by Mark may help you locate the leak. Keep us posted on the outcome.

Gord.

[levi_73]

well i havent found the leak still.... but if i run the truck for a lil while the exhaust stops smoking... truck runs the same as it always has... i have good oil pressure... but the truck still leaks a quart of oil after it is parked... any other ideas...

[GreenF350]

Leaks oil visible on the ground? or it just disappears. I don't really know much about diesels yet, but the smoke out the oil filler indicates blowby. That aside, I was told that I should "keep an eye" on some oil lines that run behind the head on the passenger side. I was told that they are hard lines and tend to crack over time from vibration. Don't know if this is true since I haven't followed directions and looked for this yet, but it's an idea. Seems like it should leak while it is running though too.
-Aaron

[gregor]

You can also have a compression test done to see if it is piston or ring. This should narrow down the search for the oil leak. I have a bronco that had three broke pistons (had holes in the top of them) in it and it would leak oil yours is. What are you driving habits like and do you have any mods? Are you pretty easy on it or like to remind yourself how much power you have by getting on the gas alot.

[straycat]

Hey levi, just to be clear, are you talking about engine oil, or fuel oil. Fuel running down a dirty engine onto gravel or dirt can look a lot like engine oil.

Gord.