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Unread 03-10-2007, 08:06 PM   #1
HurriJeff
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2013 WK 
 
Join Date: Mar 2007
Location: Florida
Posts: 485
Strange New noise under 05 Hemi

I have this new noise coming from under my car. Its just loud enought to hear when I'm next to a curb or a wall while driving or with the driver door open when stoped. It seems to be coming from the transmission, but it could be just about anything. Everything runs fine but I cant live with it till it breaks. Anyone heard this and/or know anything about it ??

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Unread 03-10-2007, 08:15 PM   #2
T-Rated
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More info would be helpful. Is it a consistent noise, like a ticking/clicking/tapping/rattle? Does it speed up with the engine RPM? Does it speed up with driving speed? Only when the vehicle is in gear?
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Jeep: 2006 Midnight Blue Grand Cherokee Limited 4.7L Bells Whistles
Mods: Tow Hooks Mopar & 4xGuard Skid Plates & Rock Rails Flowmaster 70 255/65R17 REVO's
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Unread 03-11-2007, 07:36 AM   #3
HurriJeff
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OK thanks... The noise is audible in park and while driving. Its quiet at idle but around 1500 to 2000 Rpm's. I got it pretty loud yesterday morning at startup, my wife even looked at me when she heard it. But it went away in less than a second.
After much thought..it sounds like a rusty wheel bearing might sound. Kind of like .. lets see.. A galling sound like rubbing a handfull of small gravel stones together. Frequency of the sound is about engine speed. I have heard similar sound coming from an improperly installed or damaged torque converter. I've decided to take it to the dealer for warranty service but I'll post their findings.
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Unread 03-12-2007, 12:47 PM   #4
vtbert3
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I believe I have the same sound comming from my 06 GC hemi. The noise I hear is a ticking and I believe it is possibly something in the valvetrain such as a lifter etc. I found many complaints of this noise on a hemi charger forum and it seems to be a common problem on the hemi's. Interested to see what your dealer finds...
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Unread 03-12-2007, 06:14 PM   #5
HurriJeff
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Join Date: Mar 2007
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Posts: 485
Well I inspected under the car and found a dent in the catalytic converter and the noise seems to be coming from there. There are exhaust pulses in the pipe and the core must be tapping the housing inside. I was planning to take it to the dealer on tuesday but something came up at work and I'll need the car tuesday. I'll keep you posted.
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Unread 03-15-2007, 08:04 PM   #6
HurriJeff
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2013 WK 
 
Join Date: Mar 2007
Location: Florida
Posts: 485
Well.. wednsday it totally quit rattling. I suspect that the cat core wedged and isnt vibrating any more. It will be back and I'll post again when it does.
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05 Grand Cherokee Limited 5.7 Hemi 265/65/17 Revos, K&N
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