So I am driving home lastnight and turn down my street...idleing down the road at 25mph and the motor starts running really bad. I pull into my driveway and park and there is a bad smell. The engine has a consistent miss at all RPM but there is no CEL on. So this morning I check my wires and pull my plugs. The number one plug looks a little wet. So I run a compression check. 1-0, 2-155, 3-165, 4-165, 5-160, 6-155, 7-155, 8-145. Well no compression on #1. So I pump 3 squerts of oil into the cylinder and test again. Now I have 90 lbs. That is not good. So I am thinking rings. So I test it again. Now I have 0 lbs again. Again 3 squerts of oil in the cylinder and 0 lbs again. Now I am like WTF? maybe a broken valve spring. Pull the valve cover. Nope springs look good. So I put a straw in the spark plug hole and have the girlfriend crank it over. Piston is not moving! So I pull the oil pan. In the pan I find this.



Truck was running GREAT until lastnite. Now I am looking for a short block. Does anyone have any recomendations??? I live in Las Vegas. Thinking I can swap it in a day.

Thanks in advance.

Ted

 

Damn!! Sorry to see that. No recommendations as i have not yet had any catastrophic failures. Hope it all works out soon.

 

Spend a bit more, get a long block. Here's one for 1600.... Another for 1250..... There are deals out there, I have no idea about the reputation of those guys though.....

 

Yeah it sucks for sure. Hope the repair will not be tooo painful.

 

Thanks for the links man.

 

Well the new long block arrived and I started getting it ready to pull out today after work.

 

Well the new motor is in and running. I didnt really get a chance to drive it much but it seems to be running good. Looked like the timing chain on the old motor was due for replacement. Had a ton of carbon in the head exhaust ports and on the pistons. I seafoamed the truck about 1 1/2 months ago so I am wondering how well the seafoam works if at all. The milage was 109000.

 

Glad to see your up and running.

 

I wonder if there was something else wrong with your truck, 109,000 isn't that many miles on a 5.9.

 

I am thinking heavy predetonation over an extended period stress crack the piston and then it just let go.