Question about 1995 Pontiac Grand Am

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Head gasket sealant

Does anyone know it those sealants for blown head gaskets really work? What the average cost of repairing a blown head gasket?

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Liquid glass works well and there are a couple of others that work as well and the average cost is about 6.00 maybe a little more but its not expensive

Posted on Jan 14, 2009

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As a A S E Certified Tech I Do NOT RECOMEND ANY "QUICK FIX" ADDITIVES Especialy for such a Critical Engine Component

More Costly but Also More effective is to Tear down Engine and Replace Head Gasket as You may have A Cracked Head Or Block That NO ADDITIVE will TRUELY REPAIR PROPERLY

Rough Estemate In USA Midwest $350.00-$600.00 For The Real FIX yep they vary that wide Some of us Love Helping PEOPLE the Rest LOVE THE MONEY MORE

Posted on Jan 14, 2009

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Yes it works Temporarily. Ultimately you will have to get the Gasket Replaced though.

Posted on Jan 14, 2009

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1 Answer

Does the stop leak work by swelling the rubber seals or by detecting air and stopping up the leak?


It depends what sort of stop leak you're talking about. There's different types.

Something for a leaking windshield rubber works by filling a gap and then becomes hard, similar to how bathroom sealant works.

An oil stop-leak works by penetrating and 'refurbishing' -swelling- dried gaskets and then hardening when it contacts the air on the outside of the engine block.

Some types of coolant sealant work by allowing particles to congregate/collect around a small hole in a radiator, blocking the hole. The particles harden due to the air/heat to form a plug. This type of sealant can also block your heater matrix, and they do not repair rubber hoses (hoses must be replaced if leaking).

A cylinder head sealant works by either depositing particles in a small crack in the head or gasket, or in the case of a modern head sealant, it uses polymers.

If you have a slight oil leak - slight - on an engine or auto box, try a sealant. If it's anything more than a slight weep, then gasket/seal replacement is the best option.

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All block sealers will work for MINOR seepage of head gaskets beyond that gasket replacement is suggested.

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Does head gasket sealant really work?


it depends upon what your problem is. If you have a badly blown head gasket then nothing will work, or if it is a small leak either into the water system or into the sump it could possibly work.So could you please give some more information about your problem.I hope this helpsregards

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BLOWN HEADGASKET- Gasket Sealers? I have heard that there are a few additives that work to fix a blown head gasket. Mechanics seem to like "BLUE DEVIL." One stated that he has used the product...


My personal experiences with gasket sealers for Head gaskets has been very poor due to the fact that it's difficult for the sealer to stick in the leak when there's so much combustion pressure trying to push the sealant out of the leak on one side and only about 17 psi of coolant pressure trying to keep it in from the other side. On both a 2.0L or a 2.4L engine I would suggest having the head removed and inspected and the gasket replaced....then your problem is fixed and done. Sealants may work for a while but I view them as a temporary band aid approach at best. If you have over 100,000 miles on the engine and haven't yet replaced the timing belt then it would be a good time to do that also as a worn timing belt can cause some pretty severe engine damage should it fail. Hope this helps and good luck!

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SEALANT


you have too pull the head anyway so put a new gasket in their less than 30.00

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Intake to head bolt torque


Intake bolt torque is 11-14 foot pounds. Note:
to torque bolts & nuts, start in center using
crisscross pattern working outward. And as Far as the sealant goes, you shouldn't need any additional sealant since the new gasket has sealant.(just make sure both surfaces are clean an free of oil.) sometimes if the head or the block show signs of pitting on the matteing surfaces then you could use a litttle of that cooper spray gasket to coat the new gasket.

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