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10-21-2008, 07:38 PM
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3800 Newbie
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Peter Strohmeyer
2000 Chevy Impala LS
Location: Granville, Ohio
Join Date: May 2007
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Please don't be what I think it is...
Well, so much for modding this car, all of my mod money has been going to keeping it together! Anyways... My car started making a noise after I changed the oil. It sounds like a bunch of pebbles inside my engine. Now, I don't THINK that's what bad bearings sound like (from what I've heard), but then again, I don't know what else it can be. It sounds like it's coming from the drivers side, and it sounds like pebbles in the engine. It sounds like it goes away when I bring it above 3000 rpm, but before that it's there. It's not loud at all, in fact you have to have the radio off and the air off as well to hear it. My car was fully warmed up and it runs the same way it usually does. Any ideas?
BTW, my car has a FWI, so my next guess would be hearing valve noise more clearly...
:edit:
Tried to get a video, but my phone wouldn't pick up the sound well enough...
__________________
~Peter - 2000 Impala LS
Mods: GAB (Gutted Air Box), 35% Tint, Stock 2002 CD player, New Transmission from a 2003 Impala w/ 54k miles, INTENSE PCM, Continental ContiExtremeContacts
Last edited by Petraman; 10-21-2008 at 08:10 PM.
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10-21-2008, 09:29 PM
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Premium Paid Subscriber
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Harry Stone
1997 Buick Regal GS
Location: Clovis NM
Join Date: Sep 2004
Posts: 2,441
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That's a tough one. If you know someone at a repair place, might run it past them as see what they say?
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As always, contact Ed Morad for your used parts needs. sales@moradpartscompany.com
I AM NOT ED!!! 
Regal GS(X), 3.5 installed (3.3 hanging around)" MPS pulley, SLP headers; cat back; CAI, Intense upper engine mounts; 3rd gen LSD; S1X cam; HPTuner, 1.6 Roller rockers, ported S/C, Autolite 104's, 180 t-stat, headlight wiring upgrade, HIR low beams, SLP springs, GM sway bars and trailing arms, fancy-ass rims and cool badges. 
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10-21-2008, 09:32 PM
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3800 Newbie
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Peter Strohmeyer
2000 Chevy Impala LS
Location: Granville, Ohio
Join Date: May 2007
Posts: 14
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I can run it by Intense later in the week to see what they think. I've been meaning to stop by to have a shift kit installed, so that's a good excuse...
__________________
~Peter - 2000 Impala LS
Mods: GAB (Gutted Air Box), 35% Tint, Stock 2002 CD player, New Transmission from a 2003 Impala w/ 54k miles, INTENSE PCM, Continental ContiExtremeContacts
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10-21-2008, 10:20 PM
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3800 Master
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Chris Maines
2001 Grand Prix GTP
Location: Coulmbus, OH
Join Date: Sep 2005
Posts: 1,596
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Might be a bad lifter.
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2001 GTP.
INTENSE S1X Cam, INTENSE LSD, INTENSE Custom PCM, INTENSE MPS w/ 3.2 pulley, INTENSE FWI, SLP HEADERS, INTENSE Transmission (3.69:1 gears and 3250 stall TC), GEN V SC, 42.5# injectors.
1/4 Mile...12.73 @ 107mph
http://www.cardomain.com/ride/2551142
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10-22-2008, 05:46 PM
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3800 Newbie
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Joe Bailey
Location: Rochester
Join Date: Aug 2008
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supersix17 holds the following arcade championships:
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that sounds like lifter noise. Does the noise get faster as you bring the rpms up and then go away or does it just go away?
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10-22-2008, 06:36 PM
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3800 Newbie
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Peter Strohmeyer
2000 Chevy Impala LS
Location: Granville, Ohio
Join Date: May 2007
Posts: 14
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Petraman holds the following arcade championships:
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It fades away once you bring the RPMs up...
__________________
~Peter - 2000 Impala LS
Mods: GAB (Gutted Air Box), 35% Tint, Stock 2002 CD player, New Transmission from a 2003 Impala w/ 54k miles, INTENSE PCM, Continental ContiExtremeContacts
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10-23-2008, 08:03 AM
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Super Moderator
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Bill Bostick
1997 SSEi
Location: CT
Join Date: Sep 2006
Posts: 939
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That wouldn't be a rod bearing.
__________________
1997 Bonneville SSEi 1/4 Mile 13.185
1997 Regal GS
1998 Regal LS
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10-23-2008, 01:21 PM
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3800 Newbie
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Peter Strohmeyer
2000 Chevy Impala LS
Location: Granville, Ohio
Join Date: May 2007
Posts: 14
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Thanks Boosty, I was hoping you'd reply to my thread  You put my mind at ease a bit...
Ok, I'm almost positive now it's not coming from the engine. I can't hear it at all in the engine bay, but I don't have a stethoscope (yet) to make positive. It's not rhythmic at all, either. It sounds exactly like a bunch of pebbles rolling around in a can, though a bit more muffled. It's not loud at all; I can't even hear it with the air turned on. I don't know... I'm confused at what this might be. Could it be the heater core? Could it be something inside the transmission? (remember, it happens in neutral too)? I'm still not ruling out the cat, but for crying out loud, I only have 98k miles on the thing... But then again, I do have that P0420 code that I always thought was false... I'm planning on going to Intense this week to figure out what this is.
__________________
~Peter - 2000 Impala LS
Mods: GAB (Gutted Air Box), 35% Tint, Stock 2002 CD player, New Transmission from a 2003 Impala w/ 54k miles, INTENSE PCM, Continental ContiExtremeContacts
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10-23-2008, 01:56 PM
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Super Moderator
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Bill Bostick
1997 SSEi
Location: CT
Join Date: Sep 2006
Posts: 939
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BillBoost37 holds the following arcade championships:
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Yeah.. a low efficiency cat code shouldn't exist unless you swapped your cat to a magnaflow that we know give the 00+'s a hard time because they don't meet the pcm's expectations.
Probably the honeycomb of your cat breaking apart and rattling around.
__________________
1997 Bonneville SSEi 1/4 Mile 13.185
1997 Regal GS
1998 Regal LS
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