I have a buick lesabre costom 1987 3.8 .I had the engine rebuilt,now i need to know where the vacuum hoses go so i can finish this project?

Asked by May 24, 2015 at 12:34 PM about the 1987 Buick LeSabre Custom Sedan FWD

Question type: Maintenance & Repair

I need to know where the vacuum lines on the throttle body side,from the brake booster
small vacuum line, and the plentium beside the thottle down to the modulater?

1 Answer

72,435

Look under the hood for the vehicle's emission control label. It'll have a vacuum hose routing diagram. If it's gone then visit your local Buick Dealer. They may be able to get it from a factory shop manual. If all else fails, try ebay for a factory shop manual. HTH -Jim

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