you changed the plugs before you went there correct?

 

i changed the plugs before it dyno tuned, yes. i just got off the phone with Matt. he told me to check the vacuum hoses to the manifold, check the injectors, plugs again, and some other things to check. maybe even get a compression test.

 

where the plugs ok when you pulled them before the tuning?

 

well, first thing i was thinking when i was reading this thread was. upper and lower intake manifold gasket set. if one of those are damaged. then itll **** coolant into the block and the biggest thing you wanna be cautious of is spinnig out a bearing on the bottom end of the motor. a few things that are know to cause this problem

running a high octane gasoline when not needed.
dexcool

i know, i know its a sad event that dexcool - suposedly better than regular coolant eats away at gaskets all the time. most all of motors from gm starting in 99 all have this common problem.
Engines with this known problem:
3100 series
3400 series
3800 series (supercharged or n/a)
4.6 truck motor (bore and stroked 3800)

now the ecotec's were pretty dexcool stable, but that doesnt mean it doesnt happen.

if a car has a missfire upon start, i turn it off and back on. sort of a... "OK, Let's try this again". if it continues after the next two restarts, i find a new way to get where i need to be.

 

you're new to this game. this one will slide.

 

the old plugs seemed to be in good shape still, i ended up putting them back in last night. i am running NGK 2 step colder plugs. 3 out of 4 plugs that i pulled last night looked to be in good condition, but the #4 plug was covered in black. this plug came from the far right when looking at the front of the car, which i believe is the #4 cyclinder.

 

stop driving it.

 

oh crap! well i am at work, which is maybe a 5 minute drive from my house. can i drive home?

 

you'll be fine. do not hit boost. do a compression test and a leak down asap

 

i actually just talked to a local shop that can do all that for me, i'll be taking it there in the morning. what is your opinion on what is wrong? no more #4?

 

number 4 is still there, just missing pieces.

 

OUCH! thanks man, i really appreciate the info. ok so you think that it was going before the tune, that's kind of good cause i really dont want to blame and point fingers at Matt, i thought and still do think they did a great job. it really sucks cause the car only has 30k miles on it, but i have been running this set up on a crappy tune for a while before i took it up to Matt.

 

ok i dropped it off at a local shop this morning, they will be running a compression test along with other things. keep your fingers crossed guys, hopefully it will be an "easy" fix.

 

I hope for your sake it's just the headgasket and not #4. If it is #4, that really blows donkey *****!

 

this just really sucks because i ain't got that much in the bank.

 

so it was runnin a crappy tune before you took it to ttp?

 

well it wasn't really crappy, the car ran fine and nothing seriously happened. i just running rich. then i go to ttp, get dyno tuned and a couple of days later this stuff starts.

 

it could have been on it's way out before. then again, it could be a fluke thing too.

 

yea it is hard to say. cuz it was running perfectly fine, just rich before the dyno tune. maybe the new tune just pushed the limits too far and it went. i haven't heard anything from the shop, but i'll keep you posted. unfortunately i can't get it warrantied because of all my mods they'll void it.

 

that sir is a line of pure bullshit, fresh, hot, stinky bullshit.

if you find a good, cooperative dealer, they will warrenty anything!

it makes the dealer money, pays the techs, and most of all, keeps people busy!

i would highly suggest takeing what ever "easy" mods you have off and takeing the bitch in.

i had my brakes covered with a turbo hangin out back.

 

seriously? hmmmm, well i really dont have any "easy" mods. but i have a cousin that works at a dealership i bought the car....maybe he can talk to the service manager.

 

And brakes have what to do with your turbo?

 

well first of re-re they are a wearable item, thus they do not have to be covered.

2nd off, the simple fact that the car was there for work, under warrenty with just as many mods any on out there and a fairly obvious one hanging off the motor proves the point that any thing can and will be covered with the rite dealer.

 

i called and left a message for the service manager (that has known my cousin for a very long time) to call me back.

alrighty then..... i just talked to the guy at the local shop, they did a compression test & leak down..... #4 cyclinder is taking a crap! he is calling Matt and ttp to talk to him about some stuff.

 

any updates???