- posted
17 years ago
Damn That Dexcool...sprung another leak
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- posted
17 years ago
Why did it cost 700 bucks while "you" had it apart? The chain would of outlasted the body of the car btw.
Some people get about half their money reinversed. Still they place fault in the wrong place.
I have a beater with a 3800 that has had dexcool in it for no less than
7-8 years and had dexcool in it about 6-7 years before that. The intake gaskets seep a little bit but the coolant is as clear as orange soda. The seepage is do to the intake gaskets being 14 years old and not really well designed, not because it has dexcool in it. Oh and all other hoses and gaskets are 14 years old as well. Finding a stock car that doesnt leak or seep after 80k miles and 6 years is hard to do.(3100's/3400's are good running engines but they dont seal worth a damn. They are copied from a 1980's 6cyl ford engine which could explain a few things.)
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- posted
17 years ago
Your standards are low. Leaking or seeping after only 6 years is not only pathetic but unacceptable in a vehicle costing $20K new (as pretty much any car does nowadays.)
nate
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- posted
17 years ago
It is questionable if the famous GM intake manifold leaks are caused by Dexcool or if they are an independent design problem.
Certainly something is wrong!
John
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- posted
17 years ago
Neat trick considering that engine debuted in the 1980 model year GM 'X' bodies which were released in early 1979.
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- posted
17 years ago
Got nothing to do with the Dexcool and everything to do with crappy gasket design.
Front cover leaks on this engine have been common since the 1980 model year.
The fact that after two oil compromising coolant leaks the engine isn't totally seized is due to Dexcool not having any silicates which would have torn hell out of the engine bearings.
Another sucker looking to line some lawyers pockets and settle for a discount coupon for himself...
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- posted
17 years ago
HAHAHA ok yeah my standards are low or you didnt read what I wrote.
Finding a stock car (that means untouched and never been fixed) that doesnt leak or seep (that means any fluid) after 80k miles and 6 years is hard to do ("hard to do", not impossible but very very far from average).
Either everyone washes the underside of their cars before they bring them in to you or you are not in automotive repair. Find me a car that age that has NEVER had a leaking or seeping oil pressure sensor, a leaking or seeping oil pans, a leaking or seeping valve cover, a leaking or seeping axle seal, or any other countless area's including porous castings even in Honda 3.0's and other aluminum engines. My standards are from experience, how about yours.
Pretty much sums it up.
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- posted
17 years ago
Relaying what I heard. Old ford 2.8's and GM 2.8's arent dissimilar. So=20 it was copied from ford in the late 70's. Either way the engine design=20 should of been scrapped long ago. Instead they kept it and made it worse=20 every chance they got. They made a few improvements with the 3500 and=20
3900. However neither is a worthy replacement for the 3800.- Vote on answer
- posted
17 years ago
"Bon·ne·ville" wrote
Oh my god! The basic designs of the engines are "similar" so that must mean that GM copied Ford? Give me a break. By the way, if you are simply "relaying what you heard"....wouldn't it make sense to mention this in your original post so that we wouldn't automatically assume that it's "you" that is stupid?
The 3800 isn't that great of an engine. And I think you ought to wait a bit before passing judgement on the 35 and 39. I think they will turn out to be not a bad engine.
Ian
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- posted
17 years ago
We shall see. In the 20+ years that GM made the 2.8-3.4 engine family it is questionable if they ever got the intake sealing problem fixed. I know that it was still a problem with our 2002 model.
John
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- posted
17 years ago
"John Horner" wrote
John...you need to do a bit more research on the design of the
3500 code N and the 3900 engine. Intake gasket designs will have nothing to do with the longevity of these engines. They no longer have "wet" manifolds.Ian
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- posted
17 years ago
Ian,
Usually I agree with you, but what are you smoking today? The 3800 series (I'll admit the Series II variant had its share of problems. mostly because of the inappropriate use of plastic materials where they don't belong, like upper intake plenums) is probably one of THE best engines GM has ever made (along with the small-block Chevy V-8).
It is a bloody shame that after a 44+ year run that design is being put to rest (yeh, I'm well aware that the 3800 Series III of today and the 1962 Special V-6 don't share a whole lot in common, but you can trace the lineage down through the years).
I'm a bit leery of the new engines: witness all the problems GM has had with the new V-8 family recently or the Northstar back in the '90s. I'd personally wait oh say about 4~5 years before I'd even consider buying a car with the new 3.5 or 3.9 engines.
Regards, Bill Bowen Sacramento, CA
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- posted
17 years ago
Good, I am glad that after over two decades GM finally fixed that big problem. We still shall see if these turn out to be robust designs or not. My point remains that we shall see as to the overall quality and robustness of the new design.
GM has not earned the right to have customers assume that it's engine designs are well thought out and well executed. I am old enough to remember the Vega aluminum cylinder wall disaster where GM thought that iron sleeves were not needed in an aluminum block. A fancy, cheap surface treatment was supposed to do the job. It didn't. Those things turned into oil burners shocking fast.
I also well remember the horrid V-8 diesel hatched job where an Oldsmobile 350 gasoline engine was rapidly converted into a diesel design. It was a disaster and sent countless once loyal GM large car customers into the Never-Again camp.
The not-ready-for-prime-time Cadillac 4-6-8 engine and the troublesome HT series of Cadillac engines also come to mind. An aluminum block with iron heads was one of the odd features of the HT engines, but at least the HT got iron liners. Adding "sealant pellets" to the coolant of these engines was considered normal maintenance. What crap.
Then of course there is the long history of the 3.1/3.4 l family with it's intake manifold gasket problems.
The much hyped Quad-4 motor was no great piece of engineering either.
You get the point. GM has put a lot of marginal engine designs into production and let customers deal with the fallout. Of all of the ones mentioned above, only the Vega eventually got a free extended warranty period. Chevy installed huge numbers of iron sleeves for free after the oil burning Vega problem became widely known. Diesel V-8, V-4-6-8 and leaking intake manifold customers generally got screwed. Many Cadillac HT owners switched to Lexus or other foreign makes. Cadillac once really did mean Standard of the World. What a joke that slogan was allowed to become.
John
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- posted
17 years ago
Hmm, I've had several VW's in the 15-20 year old range and well over
100K miles - in some cases 200K miles - that didn't leak. Now they did receive routine maintenance and I can't swear that there weren't some gaskets replaced, but 80K miles for the lifespan of a gasket indicates shoddy design or construction. Also the OP indicated that the seepage was an intake gasket, not something that would normally be replaced as part of normal PM like a hose connection etc. which is unacceptable.nate
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- posted
17 years ago
I agree there is nothing wrong with dex cool..it is just the crappy gasket's...I have a 99 GA se2 and i have never had any problemes with this and the car has more miles on it than yours does...being a car that drives
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- posted
17 years ago
Hmm, I've had several VW's in the 15-20 year old range and well over
100K miles - in some cases 200K miles - that didn't leak. Now they did receive routine maintenance and I can't swear that there weren't some gaskets replaced, but 80K miles for the lifespan of a gasket indicates shoddy design or construction. Also the OP indicated that the seepage was an intake gasket, not something that would normally be replaced as part of normal PM like a hose connection etc. which is unacceptable.nate
If you can't say that there weren't gaskets replaced then what's the point about the VW's? Once a gasket is replaced most cars won't leak for awhile...or ever again. Unless you've had the car since new, your comparison is meaningless.
Lee
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- posted
17 years ago
It's very meaningful. First of all, there weren't any water passages in the intake manifold of a VW. In fact, other than the optional oil cooler, there is nowhere on a VW engine where coolant could leak into the oil were *any* joint or gasket to fail. Second, I can't recall ever replacing any gasket on a VW engine except as part of maintenance (i.e. valve adjustment) or some other kind of internal repair (e.g. the rod bearings that I replaced on an old G60 motor.) It's very doubtful that an intake manifold would ever be removed UNLESS the gasket were leaking (which it never did) or the head needed to be worked on. Third, Chevy small-block V-8s have had the same "questionable" water passage in the intake manifold since 1955, and those engines never seemed to have this problem. When was the last time you saw a SBC intake gasket fail before the whole engine was slap wore out and due for a rebuild?
So, as I said before, if you consider the GM V-6 intake manifold gasket failures to be "acceptable" at only 80K miles, you need to expect more from your vehicles. Heck, GM itself managed to produce a whole mess of vehicles whose intake manifold gaskets didn't fail, and so has just about every other manufacturer. Although I'm sure that GM would rather you didn't raise your standards and just kept buying their "modern" s**te.
nate
- Vote on answer
- posted
17 years ago
It's very meaningful. First of all, there weren't any water passages in the intake manifold of a VW. In fact, other than the optional oil cooler, there is nowhere on a VW engine where coolant could leak into the oil were *any* joint or gasket to fail. Second, I can't recall ever replacing any gasket on a VW engine except as part of maintenance (i.e. valve adjustment) or some other kind of internal repair (e.g. the rod bearings that I replaced on an old G60 motor.) It's very doubtful that an intake manifold would ever be removed UNLESS the gasket were leaking (which it never did) or the head needed to be worked on. Third, Chevy small-block V-8s have had the same "questionable" water passage in the intake manifold since 1955, and those engines never seemed to have this problem. When was the last time you saw a SBC intake gasket fail before the whole engine was slap wore out and due for a rebuild?
So, as I said before, if you consider the GM V-6 intake manifold gasket failures to be "acceptable" at only 80K miles, you need to expect more from your vehicles. Heck, GM itself managed to produce a whole mess of vehicles whose intake manifold gaskets didn't fail, and so has just about every other manufacturer. Although I'm sure that GM would rather you didn't raise your standards and just kept buying their "modern" s**te.
nate
You and I are just two opinions. The bulk of the people think that the VW is actually the "modern s**te". Not one of the classic GM divisions is as low as the bottom feeder of the German auto ladder (VW) in the rankings. Too many people think that because something is made in Europe it is inherantly better. The below web site shows just what people with lower standards really need to buy.
Lee
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- posted
17 years ago
The people who pay attention to JD Power surveys are not the same people who drive their cars half a million miles. The latter tend to pick brands like VW, Subaru, Volvo (older) Mercedes-Benz (older Diesels) etc. That also prompts the question as to which car you'd rather *spend* half a million miles in...
nate
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- posted
17 years ago
Very good point. You always see the term "initial quality". From that, I translate to me as within the first few months of driving. Very few cars today make unhappy buyers from the start. Even if it is mediocre, consumers will often still be in favor of their purchase rather than admit a big screw up in their choice.
Yep, that Yugo sure get good mileage. Glad I bought it.