Blown Head Gasket ::Need Advice::
u posted while i was typing, but yeah O2form is right. If its not using coolant its not a blown headgasket. does the oil look good and has it used any. with all the leaks it may be difficult to determine if youre losing any oil from leaks or if the motor is burning it.
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yeah the oil looks good...its never looked milky or anything of that sort...and no I haven't noticed any loss of power...she seems the same to me to be honest.
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yeah i keep getting the same code and its only for the knock sensor...nothing else ever comes up...its P0332
you think its possible vibrations from the exhaust are triggering the code since the ypipe does bang against the floorboard sometimes; at least thats what a friend had suggested...but i don't know how valid of a statement that is
you think its possible vibrations from the exhaust are triggering the code since the ypipe does bang against the floorboard sometimes; at least thats what a friend had suggested...but i don't know how valid of a statement that is
Last edited by L3THAL_Z28; Feb 9, 2011 at 08:23 AM.
its not really to be honest. It picks up internal engine knocks. Im super curious now. I really dont think you have a big problem. I think id replace all the valve seals and go ahead with the ls6 springs while you have the stockers out and start there. if it still does it with the overheating the rings may be bad.
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if it still overheats the rings may be bad? did i read that correctly? because its no longer overheating...i've just about had it with the SES light too...i'm on the verge of taking it somewhere and have them figure it out and fix it.
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Verdad Gallardo no if it is still smoking after the valve seals are replaced the rings may be bad. Overheating the motor can take the tension out of the rings. If it previously got to hot and took the tension out it could be seeping oil into the combustion chamber. But usually weak rings would yield a noticeable loss of power. I'm a little stumped right now but let me think about it for a while.
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Ok so I'm gonna check the coolant level over the next few days and see if there are any changes...I'll replace valve stem seals and the valve cover gaskets and let you know what happens...I don't know when I'll be able to get to it though since I'm getting married in less than 3 weeks and I hardly have time for anything...also i am not ruling out your worst case scenario of bad piston rings but i dont think thats it since it started blowing smoke way before it ever overheated on me and like you said i have never noticed a loss in power...but anyway I'll post up here the results and I'll pm you whiteaw57...thanks for the help.
No prob man congrats on getting married. I really wanna figure this one out. a great way to check if it is valve seals is take it up to 5500 rpm of so in third or fourth gear and just let it fall. and see if it smokes alot. When you create that much vacuum it will pull any air/liquid it can and youll see it in the exhaust. Good luck, pm me anytime
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thanks man and ok i'll do just that and post the result hopefully by today...btw a while back when i changed my spark plugs the one further back on the drivers side had some oil on it. If i remember correctly it didn't have oil on the electrode but I can always go back and pull it out to be absolutely sure. I don't know if this helps you any in trying to figure this out.
Humm, you've got me stumped too. There are a couple thing off the bat the seem off to me.
1. Valve covers really shouldnt leak. They dont really have oil sitting on them... as 1 they are vertical, and 2 they arent under oil... oil just splashes up inside the head. It would seem more likely to me that it would be coming from the intake, and seeping down the side of the head... then pooling up between the head and the valley cover. As the valley cover also shouldnt leak for the same reason.
2. I read all the posts, but dont think you answered the question as to WHEN it smokes. Are you just sitting, or is it at WOT? How often? and how much smoke (do you see a little in the rearview or are you smoing out the guy behind you)? As this will make a big difference.
3. You would know it if it was burning coolant as its a distinct sweet smell. So Id rule that out.
It sounds to me like your getting oil into the combustion chamber, which in small amounts isnt a huge deal. My guess would be that its got something to do with the vacuume. Having had the intake off several times im wondering if something happened with the evap system. Something not plugged in correctly? Lines swapped?
Have you had the tune looked at? Did it start smoking shortly after the last tune? Could be as simple as running rich.
1. Valve covers really shouldnt leak. They dont really have oil sitting on them... as 1 they are vertical, and 2 they arent under oil... oil just splashes up inside the head. It would seem more likely to me that it would be coming from the intake, and seeping down the side of the head... then pooling up between the head and the valley cover. As the valley cover also shouldnt leak for the same reason.
2. I read all the posts, but dont think you answered the question as to WHEN it smokes. Are you just sitting, or is it at WOT? How often? and how much smoke (do you see a little in the rearview or are you smoing out the guy behind you)? As this will make a big difference.
3. You would know it if it was burning coolant as its a distinct sweet smell. So Id rule that out.
It sounds to me like your getting oil into the combustion chamber, which in small amounts isnt a huge deal. My guess would be that its got something to do with the vacuume. Having had the intake off several times im wondering if something happened with the evap system. Something not plugged in correctly? Lines swapped?
Have you had the tune looked at? Did it start smoking shortly after the last tune? Could be as simple as running rich.
i thought for a while that it could just be rich as well, especially when he said it did it just sitting there idling. when you smell the smoke does it smell like terrible exhaust fumes? Im leaning toward valve seals or evap. Rings being an absolute last thing to check obviously. It would run bad if the rings were slack.
thanks man and ok i'll do just that and post the result hopefully by today...btw a while back when i changed my spark plugs the one further back on the drivers side had some oil on it. If i remember correctly it didn't have oil on the electrode but I can always go back and pull it out to be absolutely sure. I don't know if this helps you any in trying to figure this out.
1. Get a compression test gauge and fitting for your sparkplug hole.
2. Disconect your fuel pump fuse or fuel pump relay.
3. Pull ur spark plugs
4. Screw your compression test gauge into the spark plug hole
5. Let the engine crank over 4-5 times and watch the gauge. Your number should be between 130-160. Pay close attention to the cylnder that had oil on the spark plug. If it is low like 115 or less than poor a little oil in the cylnder, screw your gauge back in, crank the car 4-5 times and watch ur gauge. If your numbers went up, than you have a bad piston ring. If the number stayed the same and is still low, you need to check the heads...
thanks man and ok i'll do just that and post the result hopefully by today...btw a while back when i changed my spark plugs the one further back on the drivers side had some oil on it. If i remember correctly it didn't have oil on the electrode but I can always go back and pull it out to be absolutely sure. I don't know if this helps you any in trying to figure this out.
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2. I read all the posts, but dont think you answered the question as to WHEN it smokes. Are you just sitting, or is it at WOT? How often? and how much smoke (do you see a little in the rearview or are you smoing out the guy behind you)? As this will make a big difference.
It sounds to me like your getting oil into the combustion chamber, which in small amounts isnt a huge deal. My guess would be that its got something to do with the vacuume. Having had the intake off several times im wondering if something happened with the evap system. Something not plugged in correctly? Lines swapped?
Have you had the tune looked at? Did it start smoking shortly after the last tune? Could be as simple as running rich.
It sounds to me like your getting oil into the combustion chamber, which in small amounts isnt a huge deal. My guess would be that its got something to do with the vacuume. Having had the intake off several times im wondering if something happened with the evap system. Something not plugged in correctly? Lines swapped?
Have you had the tune looked at? Did it start smoking shortly after the last tune? Could be as simple as running rich.
i'm pretty sure i've corrected everything correctly...my friend did snap a line one time that we don't know where it goes on the passenger side...he kinda taped it up...been meaning to fix it...also another line by the fuel rail on the passenger side (the one wrapped in foam) snapped last time i pulled the intake...but the car was smoking prior to that line snapping.
the tune is stock...i was waiting to buy an LS6 intake before the getting it dyno tune. Last dyno tune she ran lean...could it have changed? dyno sheet is a few posts up.
i thought for a while that it could just be rich as well, especially when he said it did it just sitting there idling. when you smell the smoke does it smell like terrible exhaust fumes? Im leaning toward valve seals or evap. Rings being an absolute last thing to check obviously. It would run bad if the rings were slack.
haven't checked that but i will do so tomorrow evening.