Absolute DIY Replace Upper Intake Manifold GM 3800 3.8L V6 Oldsmobile 98 Complete How-to

Absolute DIY Replace Upper Intake Manifold GM 3800 3.8L V6 Oldsmobile 98 Complete How-to

The upper intake manifold is made of plastic and over time begins to leak coolant into the combustion chamber or the crankcase or both. You many get a misfire and poor running, or contaminated oil that will ruin your engine. I will show you how to replace the upper intake manifold, including every step of the process, to get your GM 3800 (they put that engine in lots of cars from 1995 to 2005) back on the road.

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