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MISSING/HESITATION AT FULL THROTTLE-FULL BOOST 850

Dan,

I had a hesitation problem once. It was never noticable at highway speeds, but at idle and slow speeds you could feel it. No codes, so I let my mechanic check it out. It turned out that one of the spark plugs was developing a crack. The previous owner did it the cheap way and installed basic volvo plugs. My 850 model is a turbo and requires platinum plugs. Replaced em, and the problem never returned.






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