1992 or 93 buick leSabre 3800 engine. start up it shakes (vibrates) and when driving poor acceleration and more shaking. Popped the hood and heard a hissing noise towards the back of the engine close to steering pump res.; somewhere along back side of engine.....any clues as to why it shakes and what hose is causing the hissing noise?
1992 buick lesabre problem with shaking?
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