HOW TO: 1988 Buick GN---turbo set up?


New Member
May 6, 2022
looking for the location of the hoses on the Garrett Turbo. The boost gauge is not functional--was worked on for other issues and the hose replacement didn't get done correctly. can't find a diagram for the hoses for the boost gauge, waste gate and controller. thank you
Alan from Florida
Factory gauge usually doesn’t work. It’s electronic and needs to be rebuilt. You can tie into the map sensor line and run a mechanical boost gauge. That’s what most of us do. As to he stock plumbing, someone here has pictures of the wastegate lines and routing, I’m sure they’ll chime in
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