![]() The 'internals' of my engine were very clean and sludge free so I am fairly certain that I caught the problem before any damage was done.Īfter reading a lot of information regarding this problem and witnessing the repair I believe that poor gasket and fastener design are the problem and that DEXCOOL is not the problem.Hi, I'm new to the site and a little frazzled. (the original bolts were found to be just fingertight). We used the RTV silicone as described in the directions and tighten the bolts in the sequence specified by GM. ![]() Since the locktite looked dry we added 1 drop of additional locktite to each bolt. We used a FELPRO THERMA-DRY (Problem solver) gasket and new bolts which came with the 'locktite' already applied to the bolt. He told me that his friend at the Chevy dealer said the 'book' time is 7 hours but that he does it in about 4 hours. he acknowledged that if he were doing them 'everyday' he would probably cut the time in half. It took an experienced mechanic (who had never done one before) about 8 hours. I added another bottle of Barsleaks and waited till spring to change it. The car has 80K and when I did my first UOA last fall it said "slight trace of potassium, keep an eye on the i/m gasket". I am 'resurrecting' this old thread because I just had a co-worker friend do the gasket in my 02' Buick Century 3.1. He travels many miles, daily 60 miles to office than out to patrol state hwy's for maint concerns. His first one was called back at 80,000 for frequent and severe maintanence trends (repair costs exceed residual value,lease is automatically up) and his 2005 has been in the dealer a few times he says. Since 2001 he has had 2 Ford Taurus's that have been nothing but problems. One guy I know drove his for about 190,000 miles and told me he had no problem with the car. All the people who drove them never complained about them or had major problems for the 100,000 mile lease. We also had many 1996 up Lumina 3.1L where I worked (retired 02) and never heard of any intake manifold leaks with them. Only $$ spent on the car was yearly oil changes with synthetic, new exhuast once, new brakes once (rear rusted up bad). If only has 68,000 miles (was my mothers go to church to and store car but she can't drive anymore). I have a 1993 Lumina 3.1L since new and no problems with coolant leaks. I was just curious how you were able to make your statement. So they can last a while if taken care of. Where do you draw your conclusion from? Several folks have had to get it fixed more than once.īTW, I have had this problem fixed once so far on a '94 3.1L. Your car lasted a while but admittedly it didn't have the problem. How do you know that it will (or can) live a long life if the I/M leak is fixed ASAP. Agree with your 1st point about UOA.īut your 2nd paragraph has me confused. That car was a '95 and didn't have "the" problem. I just sold a GM with a 3.1 to one of my friends and it's still running well at 175,000 miles. The good thing is, if you get it fixed before serious damage is done to the engine, it will live a LONG life with decent maintenance. Indeed, your engine comes from the years that experienced the leakage problem. It costs you about $20 and you'd know in about 5 days. Quote: Originally posted by terminaldegree:Ī quick UOA will put this in perspective, in terms of both existence and severity of the problem.
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