Transmission Issues (Please Help) - G8Forum.com - Pontiac G8 Discussion Forum
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post #1 of 3 (permalink) Old 07-02-2012, 11:21 AM Thread Starter
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Transmission Issues (Please Help)

I have a 2008 G8 GT with 53K miles. Recently my RPM's have been fluctuating up and down as I drive a constant speed in the 40-45 mph range. You can feel the car surge back and forth as if the transmission was slipping. Has anyone have any of these issues and if so what was diagnostics? Any help would be great.
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post #2 of 3 (permalink) Old 08-23-2012, 12:04 PM
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I've recently had the same issue. It is not constant but it frequently happens. I had my engine replaced with a new one. The previous engine did not surge. The engine surges between 700-1100 RPMs and it does it while stopped too.
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post #3 of 3 (permalink) Old 08-24-2012, 02:56 AM
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Torque converter going bad?
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