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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

What causes SHUDDERING at 35-40mph (3rd gear)

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Old 05-27-2005, 11:51 PM
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For the record gents, after my tranny cooler and TPS tweak I'm surge-free. The shuddering problem may be ignition, but if it'* long surges you're dealing with I'd take a look at the condition of your TC and TPS.
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Old 08-02-2005, 03:44 PM
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I replaced a broken motor mount last weekend. 90% of my "tranny shudder" went away.
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