bflee

iTrader: (1)

So just a little while ago I had a superbly massive fireball out of my exhaust on hard acceleration followed by a pop and a p0301 (misfire) code limp the car just a little back to the house and there's an awesome amount of oil coming from my exhaust.
I am full bolt ons and term tuned via Brian the lion on a stock turbo

No coolant in exhaust
Coolant levels fine
Nothing out of place in the engine bay

Turbo is done ? Non lnf familiar mechanic says it may be a hole in piston 1 any advice? Thanks!

ECaulk

iTrader: (6)

Take the intake off and check for shaft play. Also a better definition than an awesome amount (are we talking quarts coming out).

You could also take a look at Cyl1's plug and then perform a compression or leak down (leak downs are better but a compression test will show you if there is a hole in Cyl1).

bflee

iTrader: (1)

Enough smoke you couldn't see behind me for the whole half mile I limped back, maybe a 1/2 quart nothing detrimental. Will check the shaft and pull the plug this pm

bflee

iTrader: (1)

And now I'm getting a cam position sensor and misfires in 1, 2, 3 checking the codes this morning

ECaulk

iTrader: (6)

Good chance its the turbo then. But def check compression also

bflee

iTrader: (1)

Will do asap, thanks

bflee

iTrader: (1)

Very minimal shaft play in 1 direction only. Compression test to come tomorrow

bflee

iTrader: (1)

Oil in each cylinder, 165 across the board except cylinder 4 which is reading 0, battery died and starter won't turn over so I assume that's the issue. Valve seals maybe ?

ECaulk

iTrader: (6)

Check your intercooler for excess oil , and pull your intake mani to see if the pcv valve is stuck open also

bflee

iTrader: (1)

I'll pull the intake tomorrow, if the pcv is stuckopen they're will be an obscene amount of oil or caking or what ? Valves are moving on startup but somehow still no reading for #4

ECaulk

iTrader: (6)

Missed the number 4 at 0. Good chance the cylinder is done

reybalt

Same **** happened to me. You'll be better off buying a new engine from ZZP.

Sl0wbaltSS

******* cyl 4. Happened to my brother, me, you, and everyone else! Dammit GM! Good reason to get new parts though :p

bflee

iTrader: (1)

Didn't get the intake off but 4 still won't read so I guess I blew apart something, will bore scope it in the next few days and post my findings

bflee

iTrader: (1)

6-8oz of oil poured out of the intake manifold when I pulled it, valves all moving no oil in fmic or any of the charge piping. Could it be the pcv system ?

ShaunDRZ

So you didn't blow cylinder 4?

bflee

iTrader: (1)

Head is coming off today, just is fishy cause it won't even move the needle. Need to leak it down I guess

Psykostevo

If it consistently doesn't provide ANY compression, then I can only imagine that it is blown really badly.

ECaulk

iTrader: (6)

Or a valve is missing, which would be pretty tough on the piston