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intake manifold gasket failure? - READ ONLY
12 messages, Last post on Apr 23, 2003 at 1:23 PM
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What is this discussion about? GMC Sierra 2500, Engine, Truck
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#10 of 12 There is a known problem with the gasket. by gator36
Apr 08, 2003 (12:06 pm)
Basically Mark is right. There has been a TSB or two in the past referring to overtightening of the intake manifold, thus the resulting gasket leak.A number of the mechanic's I have seen still try to bolt these intake's down by "feel" and fail to follow the manufacturer's guidelines. Most still try to torque the manifold in ft lbs not Inch lbs.
#11 of 12 Gmemgineman1 by gmengineman1
Apr 22, 2003 (4:13 am)
Intake and exhaust manifold problems have plagued the GM big blocks for some time. The exhaust manifolds get so hot that they warp and have to be resurfaced. The intake manifold problem is present with either the red or green coolants. However there seems to be a problem with dexcool. GM has launched a suit against Dupont over that product and the costs that GM has incurred dealing with their use of the product. Both parties are now negotiating what will happen. Interestingly, GM is still using the product in their vehicle line today.#12 of 12 gmengineman... by cspaulding
Apr 23, 2003 (1:23 pm)
You can bet consumers will get the short end of the stick...just like the last suit for the gas tanks, a $ off voucher that you have to jump through hoops to get...my truck still has the original gas tank. But, to cease using the product would be to admit that there was a problem with it.- « Previous
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