I have a 98 GP GT couple. As im going to have the intake manifold and gasket changed this May, I m preparing the parts and tools now. I found from 3800 Series II Vin K Upper Intake Information : Engine : PontiacBonnevilleClub.com that there are two recommended manifold, so i m wondering which one is better?
1. APN: "About a year ago, we became aware of a new kit that appears to offer the best off-the-shelf fix for the upper intake manifold. The combination of a metal heat shield to protect the plastic upper and a reduced diameter stovepipe is the best method we can currently recommend to resolve this problem without altering the cooling system. Using either of the two reduced diameter pipes supplied with the kit, an insulating gap of .125†is created between the hot pipe and the heat shield. The kit is marketed mail-order by Automotive Parts Network; it includes a UIM gasket, a throttle body gasket, and other parts, and is priced under $100. http://www.ineedparts.com/auto-parts/in ... 17806.html "
2. Dorman: Dorman markets a replacement UIM kit that includes reduced diameter stovepipes that will directly replace the larger stock pipes. When one of the smaller pipes supplied with the kit is installed in the LIM, the insulating gap between the hot pipe and the plastic EGR bore is increased to .123â€. The Dorman upper is a good replacement for the original equipment part, and includes a UIM gasket, throttle body gasket, and other parts, but the EGR passage is not protected with a heat shield. The Dorman kit is available widely and sells for about $150.
any more tips or comment other than than will be much appreciated, too.
BTW: The coolant in my GP doesn't leak at all. Only the LIM gasket leaks minor oil. but no oil drip on the ground. I douno why. Do i really need to change them recently?
1. APN: "About a year ago, we became aware of a new kit that appears to offer the best off-the-shelf fix for the upper intake manifold. The combination of a metal heat shield to protect the plastic upper and a reduced diameter stovepipe is the best method we can currently recommend to resolve this problem without altering the cooling system. Using either of the two reduced diameter pipes supplied with the kit, an insulating gap of .125†is created between the hot pipe and the heat shield. The kit is marketed mail-order by Automotive Parts Network; it includes a UIM gasket, a throttle body gasket, and other parts, and is priced under $100. http://www.ineedparts.com/auto-parts/in ... 17806.html "
2. Dorman: Dorman markets a replacement UIM kit that includes reduced diameter stovepipes that will directly replace the larger stock pipes. When one of the smaller pipes supplied with the kit is installed in the LIM, the insulating gap between the hot pipe and the plastic EGR bore is increased to .123â€. The Dorman upper is a good replacement for the original equipment part, and includes a UIM gasket, throttle body gasket, and other parts, but the EGR passage is not protected with a heat shield. The Dorman kit is available widely and sells for about $150.
any more tips or comment other than than will be much appreciated, too.
BTW: The coolant in my GP doesn't leak at all. Only the LIM gasket leaks minor oil. but no oil drip on the ground. I douno why. Do i really need to change them recently?
