Two nights ago I was driving home from Kansas City, everything was just fine when about 20 some odd miles later I entered my neighborhood, I gave it gas and got speeds up to 50, then the **** hit the fan as I let my foot off the accelerator and slowed down I could hear a odd noise. I thought at first it was the tranny, when I would give it gass it would not transfer the power to the wheels, I put it in neutral and cruised on home. I opened the hood to find all the coolant in the resivor gone, I looked under the car for driping water (after I quickly turned the car off) no driping. I decided I would see if there was any coolant in the radiator tomorrow seeing how it was 2 in the morning and all. Next day came around turns out dad put watter in the car'* radiator and in the reserve tank that morning so I could not tell if there was any coolant in the radiator or not. My dad tried to start the car a few times with no progress, later I tried to start it not hearing about his failed atempt. I then talked to my cousin the mechanic he ran through a proceedure of cranking the crank pulley, I got about a quarter of a turn when it woudl lock up. I put all 280 pounds on the wrench and it just stayed there. He told me it was hydrolocked and I would have to rebuild it. Has this happened to anyone else? What damages did you face? How much for a rebuild do you think? I have no clue as to the extent of the damage I believe I am going to get the car towed tomorrow to a repair shop. Any info will help.

Drain the oil now. Pull the spark plugs, and crank it over by hand with a large wrench on the crank pulley to flush the coolant out of the cylinders.

One of two things has happened:

1) LIM gasket failed

2) UIM egr passage failed

The first thing you should do is drain the oil. The engine still might be salvagable.

On another note, are you returning it to stock or doing a performance build up? This needs to be in the proper forum.

Fojo,

Please read this link
http://www.bonnevilleclub.com/forum/...e=article&k=38

Most likely this is what happened. If you have drained all the water out of the cylinders and oil pan, you may still be able to salvage it. However the water may have already damaged the bearings. We've seen cases of both with many in the past not realizing the severity of needing to drain the water and then get the car running asap to get any water that could be in the bearing journals out and replaced with oil again.

OK here i go to drain the oil thanks guys!

Update, front cylanders PORED at least 6-7 cups of oil/coolant out of each cylinder, drained the oil. The oil was the color of a deep deep red wine. Checked the tranny fluid, it is extra high, above the recomended fill mark. Removed the back spark plugs and cranked the engine, I could hear liquid splashing around as if it were a tank that i was rolling over, even when I jacked the car up though no liquid came out. Tomorrow or saturday I believe I will take the valve cover off and check everything. Thanks for the great link Billboost!

Thread a piece of braided twine into the spark plug holes. It will help wick the coolant out. Nothing could have gotten into the tranny fluid, so it just has extra tranny fluid in it if it'* even high. Normally you check tranny fluid when it'* running and warm.