Clunking sound - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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.

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Old 10-31-2004, 09:46 PM   #1
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Default Clunking sound

Whenever I turn the 97' off it clunks for a half second or so. Its like old carburated cars that would kind of chug for a few seconds after being turned off. Also, whenever I turn the wheel while stopped it will really make a lot of clatter because the rpms drop a little. I think if the rpms would drop to 500 it would be very loud. Jason has whitnessed it and got a confused look on his face when he heard it.
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Old 11-01-2004, 12:38 AM   #2
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Not sure about the dieseling, but the drop in rpms when you turn sharp is probably from the power steering pump. Check your fluid level and maybe spin the pulley with the belt off of it to check for a bad bearing?
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Old 11-01-2004, 01:00 AM   #3
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FPR going bad? might want to hook a guage up to it and see what it does for the first 2-3 seconds after turning it off.
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Old 11-01-2004, 01:31 AM   #4
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Oh you didn't mention the turning while parked thing...

Most likely points out to the Power Steering Pump as suggested. If it'* messed up, then when the car is shut off, and it locks up or is loose, it could cause some bad movement like we witnessed.

Yeah i had a bad look for a reason..
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