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27-05-2009, 06:02 PM | #1 | ||
Stroking it...
Join Date: May 2005
Location: The 'butt
Posts: 2,844
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So, I have a noise coming from the back of the AU (II V8 non IRS).. Issue only occurs over bumps, it has got progressively worse, now sometimes when taking off it will make a similar noise, but seems less of a "metal on metal" noise and seems to come from further back in the car?
Its really starting to annoy the hell out of me, it really sounds like a metal on metal "clunk". In my wisdom I took it to an exhaust shop and hey presto, they replaced my cat! Problem still was there... The exhaust guy did point out that my extractors were close to hitting a few bits and pieces and mentioned perhaps is the engine moving causing the noise, but I am certain its coming from further back under the car. I have also looked at Peuty's car and his extractors have the same amount of clearance, no issue on his car. After some opinions to what the noise could be? Do I have 2 different noises? a metal on metal clunking and something else? Argghhh someone help! Slowly going crazy...
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Had: 347ci AU Then: Now: Busted assed EB Wagon - 5sp and Dual Fuel. |
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27-05-2009, 06:15 PM | #2 | ||
Ford beginner
Join Date: Aug 2007
Location: Adelaide
Posts: 400
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This is most likely going to sound really stupid and not mechanically minded (but no harm in trying to help right?) but I had a similar problem in my first AU in that I had a constant noise coming from the rear somewhere. Looked all over the place under the car, no-one could suss it out.
Turns out that some metal had slipped and gone under the boot carpet and in a hole of the boot. Took a fair bit of fishing, but once removed it cured it. Just my 2 cents right there.. |
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27-05-2009, 06:16 PM | #3 | |||
Afterburner + skids =
Join Date: Dec 2004
Location: Skidsville
Posts: 12,128
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Rear bushes maybe?
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Speed Kills. So buy an AU XR8 and live forever. Oo\===/oO |
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27-05-2009, 07:18 PM | #4 | ||
Stroking it...
Join Date: May 2005
Location: The 'butt
Posts: 2,844
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Not a bad suggestion bigfoot, i actually have a lot of heat shielding under my car which i did suspect could be at fault, but does seem to be. May check that out again
Dan, I am have pondered the possibility of it being the rear bushes, although none of my rear suspension is over 2 years old. I am just not in the situation where I can take the car to someone and hand over a wad of cash to possibly not fix the issue! Maybe I will have to bite the bullet? Arrgghh! With my back theres only so much I can do by myself, so keen for more ideas before i take it somewhere and hand over cash :
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Had: 347ci AU Then: Now: Busted assed EB Wagon - 5sp and Dual Fuel. |
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27-05-2009, 08:25 PM | #5 | ||
FF.Com.Au Hardcore
Join Date: May 2006
Location: Perth, South
Posts: 3,064
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if you can get some help, get someone to lay down and look under the car as you drive off to see if they can pick anything. it could be any number of things...
looking at your sig, i would be looking at the exhaust possible hitting the diff, or vice versa, or the body of the car. a 3.5" exhaust isn't small by any stretch of the imagination, so if there's not enough clearance say over the diff or around the spare wheel well, it could be hitting that when going over bumps. i take it you can't replicate the noise just bouncing the car up and down yourself while it's parked? that's just my thoughts on it...good luck and i hope you get it sorted |
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27-05-2009, 09:04 PM | #6 | ||
www.TUFFCARPARTS.com
Join Date: Feb 2006
Posts: 5,221
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Don't the IRS AU's flog out the rear shock mounts or something.
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28-05-2009, 01:35 PM | #7 | ||
Regular Member
Join Date: Apr 2009
Posts: 240
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i had exactly the same problem, its the rubber bush on top of the diff housing. they split and fall off. i machined up a nylon one to replace it.
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28-05-2009, 01:59 PM | #8 | ||||
Afterburner + skids =
Join Date: Dec 2004
Location: Skidsville
Posts: 12,128
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Speed Kills. So buy an AU XR8 and live forever. Oo\===/oO |
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28-05-2009, 02:35 PM | #9 | ||
FF.Com.Au Hardcore
Join Date: May 2008
Posts: 1,536
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It may not be the shock mount but a shock itself may dodgy and rattling??
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28-05-2009, 02:49 PM | #10 | |||
Back to Le Frenchy
Join Date: Feb 2005
Location: Back home.....
Posts: 13,346
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What is your exhaust, mild or stainless?
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07 Renault Sport Megane F1 Team R26 #1397
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28-05-2009, 03:38 PM | #11 | ||
they call me Tibbo
Join Date: Dec 2004
Location: Brisbane
Posts: 6,163
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a worn engine mount that might be letting the engine flex....
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28-05-2009, 07:23 PM | #12 | ||
quarter pane
Join Date: Mar 2008
Location: Walkerville SA
Posts: 43
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Might sound silly, but have you checked the spare tyre in its well? Mine started making a thump in the rear end which drive me crazy until I discovered that the locking bolt on the spare had been undone completely and the tyre was banging around in the well. Sounds quite similar to shock absorber clunk.
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30-05-2009, 11:12 AM | #13 | ||||||||
Stroking it...
Join Date: May 2005
Location: The 'butt
Posts: 2,844
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Thanks to everyone for your help, just have to get these last few things sorted and I'll finally be using the AU as a daily again..
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Had: 347ci AU Then: Now: Busted assed EB Wagon - 5sp and Dual Fuel. |
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30-05-2009, 11:30 AM | #14 | ||
Walking with God
Join Date: Mar 2005
Location: Melbourne
Posts: 7,321
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At least the lads here have provided a long but easy enough list of things to check at no or low cost.
This forum rocks! I hope you get it sorted out soon. GK
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2009 Mondeo Zetec TDCi - Moondust Silver 2015 Kia Sorento Platinum - Snow White Pearl 2001 Ducati Monster 900Sie - Red Now gone! 1999 AU1 Futura Wagon - Sparkling Burgundy On LPG Want a Full Life? John 10:10 |
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