plugging the coolant ports on 3800 Lesabre ? help - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-09-2014, 08:03 PM   #11
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They should carry it.

And when tapping, usually the shavings come upwards, use a shop vac or something to suck away shavings while tapping. And if a little bit does get inside, no big deal.
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Old 02-09-2014, 08:09 PM   #12
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Bill said in that post to reuse the UIM gasket....seems like it would be better to replace it
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Old 02-09-2014, 08:11 PM   #13
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The upper gasket? If it still has a ridge on the bottom of the gasket and is still supple, then I say reuse it. Otherwise, if the gasket is dry and rotted out, replace it.
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Old 02-09-2014, 08:23 PM   #14
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I thought that GM chgd the UIM on the 2000 model year ????
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Old 02-09-2014, 08:51 PM   #15
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I think it was 2005+ with the series 3 engines. They used an aluminum plenum instead of plastic.

Or, the parts manufactures started adding a different EGR stovepipe to the plenum kits.
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