periodic rattle at idle

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periodic rattle at idle

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periodic rattle at idle - 1/28/2008 7:47:36 AM

zerochills

Posts: 73
Joined: 4/12/2007
Status: offline

i have noticed recently that at idle after I have been driving, while the truck is either in gear or in park I can hear a periodic rattle coming from under the cab. I crawled under a was able to pin point noise from around transfer case. is there some kind of heat shield above transfer case or could the transfer case itself be making the noise? rattle lasts just a second or two and elapses for a short period before doing it again, also does not make noise consistantly?

Thanks

136000 mi.

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2000 Land Rover Disco II
2003 Volvo S40
2003 Jaguar X Type

Post #: 1

RE: periodic rattle at idle - 1/28/2008 7:53:57 AM

okdiscoguy

Posts: 2485
Joined: 2/16/2007
From: Tulsa, OK
Status: offline

Not sure on a D2, but I would guess. Also tap the cats with a rubber mallet and make sure the membrane isn't broken...

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97 Discovery SD-7 156K miles
04 Cadillac CTS 34K miles
Good Oil
number of posts does not = knowledge (unless it is me)

(in reply to zerochills)

Post #: 2

RE: periodic rattle at idle - 1/28/2008 8:39:05 AM

Disco Mike

Posts: 10490
Joined: 4/27/2006
Status: offline

It will be either the heat shields or a cat that is failing.
If it is a cat, you will need to find out what caused it before you replace it, or it will happen again. Have you had any check engine light issues over the last year, how about tune ups, is it current, leaking head gaskets or oil consumption??

_____________________________

Mike
Retired service manager. Member of the Solihull Society, NCLR club,past member of the SCLR club and Santa Barbara 4 Wheelers.
99 D2, 3" lift, lockers, H.D. axles, 4:11 gears, Custom front and rear bumpers, Warn winch, HID lights and an Engel 45.

(in reply to okdiscoguy)

Post #: 3