Thread: RPM surge ?
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Old Mon, March 23rd, 2009, 11:37 AM
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MercedesTech MercedesTech is offline
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OK, this thing is sporadic at best. Trying to be able to give you details is hard. 3rd gear, everything is fine. 3rd gear, converter locked, rpms bounce around slightly, nothing bad. If its at 1800 rpm in 3rd, when it shifts to 4th it shoots up to 2400-2500 rpm. Then calms down. While in fourth, it will bounce between 1400 rpms, and 2300 RPMs pretty consistantly. During my drive on sunday, it jumped up to over 3k, then back down around 1900. When it jumps up, you can feel the engine pull, and you go faster. So, its not "dry revving" but fully engaged and still revving up.

I dropped timing -2, also tried -1 neither seemed to help at all.

Shudder is still there.
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