Re: Is the intake gasket a problem on 2004 & newer 3800?
Oh. So I took some pics at what you're talking about, it makes sense to look right at the gaskets themselves.
http://imageshack.us/a/img607/6866/dsc03971custom.jpg
http://imageshack.us/a/img267/9215/dsc03974custom.jpg
http://imageshack.us/a/img713/6068/dsc03980custom.jpg
Does this look like metal intake gaskets? I don't see any black, but I don't see much silver either. I'm thinking it's the new ones though, am I right?
Re: Is the intake gasket a problem on 2004 & newer 3800?
looks to be silver. your one of the lucky ones wheres its been done for you already.
that does not excuse the upper intake from failing tho, you may want to mod the lim still, that way it can never leak coolant into the engine. check the egr tube in the manifold as well, they crack.
Re: Is the intake gasket a problem on 2004 & newer 3800?
Well, I'm pretty happy about that, I remember the guy I bought it from saying he just had the intake gaskets done before I bought the car, I didn't know much about those problems at the time. And that is true. I was thinking of getting the Dorman 615-180 Intake Manifold that is supposed to keep that from happening. I've seen some of the plastic intake manifolds actually explode/implode, that frightens me.
Re: Is the intake gasket a problem on 2004 & newer 3800?
Quote:
Originally Posted by
02NavyBlue
Ohh that's not good.
Look like this?
http://imageshack.us/a/img839/4239/dsc02874f.jpg
Somebody mixed dex-cool with conventional green coolant. Who flushed it, and what did they fill it with? It will need another full, in depth flush. That's why I like working on my own car. :D
A little over a year ago I had my mechanic replace hoses and the belt and do a flush/fill. The car originally had Dex and that is what we had him put in it. I topped it off with Dex as well so I know for a fact we are not mixing green and DeathCool.
Inside my radiator does not look at all like that. Holy crap!!! Just the sludge under the cap.
Re: Is the intake gasket a problem on 2004 & newer 3800?
Quote:
Originally Posted by
Scottydoggs
the upper (aka supercharger) is thick paper, the lower manifold is where you need to look, between the head, and the lower intake.
the new metal gasket is thick AL.
We definitely have the black plastic craptacular LIM gasket. I am bringing it to the shop this Friday to look under the hood with my mechanic to show him the rad. cap sludge. I am going to have him quote me a price to have the LIM gasket replaced while I am there. He said something about the tranny cooler sometimes leaking or something to that effect?
If we have to drain the cooling system for some reason, I am going to have him purge the death cool, flush the system, and put the green stuff in it and be done with the Dex.
Re: Is the intake gasket a problem on 2004 & newer 3800?
if the trans cooler broke, you would have a dead tranny by now, because the coolant would be getting into your trans. or the trans fluid would be super low.
Re: Is the intake gasket a problem on 2004 & newer 3800?
Quote:
Originally Posted by
mntnbiker
A little over a year ago I had my mechanic replace hoses and the belt and do a flush/fill. The car originally had Dex and that is what we had him put in it. I topped it off with Dex as well so I know for a fact we are not mixing green and DeathCool.
Inside my radiator does not look at all like that. Holy crap!!! Just the sludge under the cap.
Well, it's the same dex-cool sludge. If you just had it flushed, there's no way dex-cool got that bad in that short of time. Something mixed with it.
Re: Is the intake gasket a problem on 2004 & newer 3800?
Quote:
Originally Posted by
02NavyBlue
Well, it's the same dex-cool sludge. If you just had it flushed, there's no way dex-cool got that bad in that short of time. Something mixed with it.
That is what my mechanic was thinking. I'm too busy with work and an upcoming vacation to investigate the problem so I am having him figure it out. Hopefully he is somehow able to test the oil, trans fluid, and coolant for contaminants to see what is going on.
Re: Is the intake gasket a problem on 2004 & newer 3800?
Well a quick pull of the trans dipstick after the car has been driven will make sure that the trans cooler isn't leaking by looking for either foamy stuff, or a loss of fluid. If that's okay, somebody put the wrong fluid in the cooling system.
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Re: Is the intake gasket a problem on 2004 & newer 3800?
Quote:
Originally Posted by
02NavyBlue
Well a quick pull of the trans dipstick after the car has been driven will make sure that the trans cooler isn't leaking by looking for either foamy stuff, or a loss of fluid. If that's okay, somebody put the wrong fluid in the cooling system.
Fluid looked right up there and it wasn't foamy. Maybe a little closer to the brown side of pink which makes sense since it has been 50k miles since the last filter and fluid exchange which will be getting done also while in the shop.
If there was a leak and air was getting into the close system, could that create the sludge? Or if the flush job a year ago wasn't done thoroughly, the old stuff mixed with the new is sludging it up? Just don't see how any green could have been mixed with it. I topped it off shortly after getting it back last year with Prestone Dex Cool approved pink stuff and haven't had to really add any fluid til just recently (added the same Prestone Dex Cool).
Buy Prestone DEX-COOL® 50/50 Prediluted Extended Life Antifreeze/Coolant AF850 at Advance Auto Parts
Re: Is the intake gasket a problem on 2004 & newer 3800?
Air in the system can create sludge but this takes a long time. Old dex and new dex will not sludge. It could have been someone in the shop that added something that shouldn't be in there. Maybe they accidentally started with green just for a second and were like, oops wrong stuff, and stopped right away then got dex and used that. It doesn't take much to get that amount of sludge.