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Old December 19th, 2005, 06:25 AM   #1
Lothos
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Default Common rattle?

Ok, so I have the 4.0 with an auto. Sitting in D with the brakes on I tend to get quite a rattle ( quite less but present when in neutral). Whilst changing my starter I noticed that the entire exhaust assembly from the engine to the first hanger under the tranny has quite a bit of play in it side to side. I think this is the rattle I hear. The tail looks intact so am I to assume there is a break at the exhaust header?
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Old December 19th, 2005, 08:45 AM   #2
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that or it has come loose at that flange maybe... mine loosens up there all the time on my SBC from the movement while wheeling, though i get a nasty exaust leak too... if your header was broke i would assume you should be able to hear a nasty exaust leak too
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Old December 19th, 2005, 08:49 AM   #3
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Nope, no exhauist noise that I can tell there. That doesn't mean it aint loose/broke though.
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Old December 22nd, 2005, 08:46 PM   #4
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Check for adequete clearances around all your heat shields workin in a muffler shop all summer id say 90% of the cars like that came in were just a loose heat shield....
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Old December 22nd, 2005, 09:18 PM   #5
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Yea, loose heat shields on the cat, or other places...usually the cat though. Or rocks between the shields and the cat ot pipes.

Turn off the thing, get under it and bang on the cat with your hand...let it cool first...then bang all over the exhaust and see where the rattle is coming from. I use a rubber hammer for banging, but your hand will work too.
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Old December 22nd, 2005, 11:39 PM   #6
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Quote:
Originally Posted by MuddyPaws
I use a rubber hammer for banging, but your hand will work too.
I'll bet your wife loves you
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Old December 27th, 2005, 08:20 PM   #7
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Yes, common rattle. What you are hearing is your t-case linkage rattling. Next time you hear it, lift the t-case lever slightly and I bet it stops. DCX makes a kit to replace the bushings because it happens so often. $33.25, Part number 5014148-AA SHAFT TRA 21005003


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Old December 28th, 2005, 07:57 PM   #8
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I agree ^^^^^^^^^^ i had this problem with my jeep and took care of it, and it hasnt rattled since, and my t-case shifter is a lot tighter now and easier to put in and take out of 4x4
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Old December 31st, 2005, 07:08 AM   #9
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My rattle is not from the Tcase linkage. While it does appear to be loudest when cold, it's definately vibrating with the engine and goes away as the rpm's increase.
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