brandon04

Alright guys!

So ive been having a mess of problem with my 2007 Cobalt ss/sc and i think they might all be related but I need some expert opinions!
My car for the past few months, when i go for a pull, or long drives the dipstick pops out. So i did what i thought was wrong with it and i replaced the intake manifold gasket (along with the endplate, and supercharger gasket) but after i fixed that it still popped out! After a few minutes of looking everything over i realised i had a pretty significant amount of blow by coming out of my oil resevior. i also have a random misfire code popping up and my car is misfiring bad, its been doing that for the past few weeks but ive had no other option but to drive it because of work... Well this morning i was driving and it started puttering super hard, wouldn't accelerate very much at all, and whenever i pushed the clutch in my car would stall out, and then it was hard to start it back up... Question is (i have a few of them):

1) could the random misfire be because the blow by is shooting oil up into my spark plugs and clogging them or something?
2) Could the blow by be a result of a bad PCV valve? i have good compression. i just don't know what else it could be...

Please Help! I have to get my car driving again for work!

brandon04

Im also running pretty stock, all i have is a AEM CAI and Headers and downpipe (ebay ones).

turboecotec02

Ring, heck compression again

brandon04

So pretty much the only thing it could be is a ring?

06blackg85ss

iTrader: (1)

cracked ring land. gonna need new pistons, possibly block depending on if the piston stayed together or not.

Slowbalt2000

iTrader: (1)

If the pcv was stuck open wouldnt that cause this?

brandon04

That's what I was thinking and there only like $20 so I might just try to replace it and see if that helps... Hopefully I don't need a new block lol

06blackg85ss

iTrader: (1)

that could do it also. cheap easy thing to change to find out.
might as well give it a shot.

personally I"ve never gotten lucky with anything being the easy fix lol.

brandon04

lol thats the truest thing i have ever heard, that's whata scaring me... haha I'm gonna change the PCV valve tonight, as well as new spark plugs and coil packs, I'll let you guys know how it goes!

Kolt

Leak down would tell you better how your rings are doing, compression check doesn't necessarily show leaking rings bc compression check pressure is a lot lower than running compression pressure, esp at boost. the rings an seal just enough to spike out during a compression check like everything is normal. pcv problems can also cause your issue.

brandon04

Holy S*#t, ran into a surprise, blown head gasket? only thing that's weird is it wasn't like this about 3 weeks ago when I changed my oil...Blown head gasket maybe? I still have full amount of coolant and my car doesn't over heat... or a cracked head, bad valve... What could it be guys? I'm not the most brilliant with cars.. haha

Haven07

Oh... Looks like a minimum your going to be pulling the head off....me personally I'd go into worst case scenario mode

06blackg85ss

iTrader: (1)

eh you get that when it's cold outside with a lot of condensation. always see that on my oil cap.

brandon04

Yeah, I'm screwed...

Slowbalt2000

iTrader: (1)

Looks pretty milky on the dipstick. Drain your oil into a clear container, let it seperate and see how much water youve actually got in there.

brandon04

alright, i'll do that tonight and ill post some pics!

brandon04

This is a video I took of my balt blowby, pretty sure it's trashed
https://m.youtube.com/watch?v=27igi6sw_W4

T-fog

So you checked the head gasket again?

I would lean towards valve seats or time for a new head, How many kms/miles is on her? Have they ever been cleaned?

Is your dip stick still popping out?

Hope this helps, Keep us posted

Slowbalt2000

iTrader: (1)

Ever drain the oil? If you keep driving it youre going to need a lot more than just a headgasket....

brandon04

I drained the oil and changed it, and that video was the product after.

brandon04

SO I just got it check out and it looks like I need a new engine, I've looked up some block on zzp, is there anything you guys would recommend me swapping it with?

Slowbalt2000

iTrader: (1)

Mongorat427 can build you an engine or sell you a nice stock one

T-fog

^^This

izcain

iTrader: (5)

Bummer man. Time to build it better!

brandon04

Thts what I'm saying man, I'm gonna put a brand new motor in it, I don't trust the used ones, I just don't really know where to start!