So my 2002 AP1 has just over 100K and is Gready turbocharged. Yesterday I was driving in the rain. Gunned it in first, second, and third. I heard possible detonation and let off. Engine threw a cell and would no longer accelerate. The car cranked but sounded like it had no compression. Also the cell went away (thanks E-Manage)!?!?

Today I pulled the plugs and discovered cylinder #2's plug was smashed (Pics to follow)!!!


I looked inside the cylinder and all of the pistons look black and dirty. I am mechanically inclined enough to do some motor work but I think this is above my head. What do you think the diagnosis is guys?

 

My psychic diagnosis is that the noise you thought was detonation was actually the head of a valve bouncing around inside the cylinder.

 

lol that's what I figure. Hopefully the long block does not need to be rebuilt.

 

Time for an engine . That sucks !

 

you need to open that sucker up and see whats inside. only posting pics of a squished plug makes it seem all you need to do is replace the plug.

 

well a plug does not squish all on its own.

 

damn thats crazy, i have an 02 and near 100k. I was about to get the greddy kit too but now this is scaring me to even boost at such high miles on the engine.

 

hope you figure out whats wrong soon so i can decided if i wanna boost or not

 

almost for sure you dropped a valve.

 

take off the valve cover and see if any valves have dropped or bent