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Re: 2008 Pontiac Grand Prix 3.8L Surge/Chuggle/Fishbite
Posted to Technical Discussion Forum on 1/24/2016 1 Reply

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Slip should be about +/-3 RPMs when the PCM is fully commanding lockup at cruise, IOW just maintaining a speed while highway driving. Your converter is slipping. It appears that engagement is being a... Login to read more.

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