Rattle down low?
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Rattle down low? - 9/26/2008 10:35:01 AM
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MikeC4
Posts: 22
Joined: 8/16/2007
Status: offline
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Hi all,
I have a rattle or clatter in my 1990. The car runs fine but, after it warms up, at idle, I hear a clatter or rattle down low around the trany but, not up higher in the engine compartment. It''s not a constant rattle, rather an occasional noise like a nut rolling around in side something. Then when I go to shut down the engine and the RPMs drop off, the clatter grows content and then stops with the engine. Also when I turn on the AC the clatter goes away for the most part. Pushing in the clutch has no effect on the noise either. I should mention that I have 6 speed trany. The car has 30,000 miles on it.
Any thoughts?
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RE: Rattle down low? - 9/26/2008 7:38:08 PM
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Curious George
Posts: 100
Joined: 9/24/2006
Status: offline
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I had the same symptoms, but i have an automatic transmission (it does not make any difference... just FYI). You have one or both of your catalytic converters going out. Mine was the passenger side. I ordered a replacement from Summit for about $200. It was supposed to be a direct fit, but not quite. I had to get the end (opposite the manifold end) enlarged slightly so it fit properly into the mating exhaust pipe.
If pull your car up on ramps and tap each converter with a rubber mallet, you can hear which one it is. It will rattle. Be careful and do not hit it too hard or you may hear a heatshield rattle giving you false results. Just tap it a little, you will be able to hear it.
CG
_____________________________
All Men Die, But Not All Men Live.
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