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.

knocked solved... now its sluggish!!!!

Old 01-30-2008, 05:58 PM
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Oil pressure? What is it?
Old 01-30-2008, 06:26 PM
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I may be wrong but this sounds like it could be the harmonic balancer. One of the resident gearheads should be able to confirm this for sure.
Old 01-30-2008, 09:28 PM
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When you turn the wheel, the PS pump is put under load. So the belt is harder to pull around its pulley. The belt is pulled by the crank pulley, or harmonic balancer. So, if the HB is failing -coming apart - applying an additional load at a low speed can be expected to make it worse.

PS pumps mostly whine when they go out or sometimes make a grinding noise. Not saying they can't make a knocking sound, but that would not be the most likely probability.
Old 01-30-2008, 10:25 PM
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Darrel, grab ahold of you belt and see if you can move it by hand. If you can, then the rubber in the harmonic balancer has seperated an is making your knocking noise
Old 01-31-2008, 01:42 PM
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Hey Darrel..... your harmonic balancer is bad

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