Rumble diagnosis please

**shimmy** · 10-06-2010, 12:20 AM

i have a Rumble!

65-80mph and then again over 100mph only

feels like it is left side of the car and it feels like a faint vibration and rumbling road noise. nothing to do with tyres/rims as they have been swapped

also very recently noticed a clicking sound rear left side at variious speeds

IDEAS?

_Nathan_ · 10-06-2010, 12:24 AM

Does it get louder under cornering load?

**cantfind1** · 10-06-2010, 12:28 AM

droplinks for the clicking maybe, you running different anti roll bars?

Rumble not sure, wheel bearing? Balance?

Bounce · 10-06-2010, 12:30 AM

Quote:

Originally Posted by shimmy

i have a Rumble!

65-80mph and then again over 100mph only

feels like it is left side of the car and it feels like a faint vibration and rumbling road noise. nothing to do with tyres/rims as they have been swapped

also very recently noticed a clicking sound rear left side at variious speeds

IDEAS?

Sounds like a wheel bearing Shim,i had this on my Mrs Audi,slight vibration and a drone over 60mph.

**shimmy** · 10-06-2010, 12:30 AM

Quote:

Originally Posted by cantfind1

droplinks for the clicking maybe, you running different anti roll bars?

Rumble not sure, wheel bearing? Balance?

what are drop links?

**shimmy** · 10-06-2010, 12:31 AM

Quote:

Originally Posted by _Nathan_

Does it get louder under cornering load?

dont think so

the rumble is not gear related but speed related. cant tell any cornering difference but as it is at 70mph hard to find a corner i can do at 70mph to check!

_Nathan_ · 10-06-2010, 08:01 AM

Drop links connect ARB to moving assembly.

Dan · 10-06-2010, 09:12 AM

I wondered about a wheel bearing but then they wouldn't click, nothing to do with the diff Shim?

**shimmy** · 10-06-2010, 09:17 AM

Quote:

Originally Posted by Dan

I wondered about a wheel bearing but then they wouldn't click, nothing to do with the diff Shim?

Got a feeling the two are seperate

Rumble linked to diff and clicking to play in the wheel, prob lower rear wishbones

gonna sort the wishbones and see what's left

if the Rumbles still there gonna swap the diff out back to OEM and see what happens

thegingerninja · 10-06-2010, 10:12 AM

I had a clicking noise once, turned to be one of the brakes pads rattling in the caliper. Check that the securing springs are correctly fitted and intact.

Droning noise - cheapest way would be assume a wheel bearing, replace it and then road test. Wheel bearing can make some very strange and different noises in my experience when they near the end of their life.

An interesting story with a 996 C4 I had: had a droning noise that increased with road speed, sounded nothing like a wheel bearing, service chap agreed with me. Long story short, they replaced the gearbox under warranty saying the the pinion bearing was goosed. Picked it up after the gearbox was done and the noise was still there! Replaced the rear wheel bearings just to rule them out - and hey presto, the noise had gone. £5000 worth of gearbox and it turned out to be a wheel bearing.....numpty's!

10-06-2010, 12:20 AM	#1
shimmy CSL Register Uber-poster! Join Date: Apr 2008 Location: Uk Posts: 14,646 Casino cash: $43909	Rumble diagnosis please i have a Rumble! 65-80mph and then again over 100mph only feels like it is left side of the car and it feels like a faint vibration and rumbling road noise. nothing to do with tyres/rims as they have been swapped also very recently noticed a clicking sound rear left side at variious speeds IDEAS? __________________ .

10-06-2010, 12:24 AM	#2
_Nathan_ Driving it like I nicked it Join Date: Sep 2008 Posts: 2,099 Casino cash: $13060	Does it get louder under cornering load? __________________ Nathan

10-06-2010, 08:01 AM	#7
_Nathan_ Driving it like I nicked it Join Date: Sep 2008 Posts: 2,099 Casino cash: $13060	Drop links connect ARB to moving assembly. __________________ Nathan

10-06-2010, 09:12 AM	#8
Dan Driving it like I nicked it Join Date: Nov 2009 Posts: 2,058 Casino cash: $6689	I wondered about a wheel bearing but then they wouldn't click, nothing to do with the diff Shim? __________________

10-06-2010, 12:28 AM	#3
cantfind1 S5, Sport Off, DSC M-track Join Date: Oct 2009 Location: Sydney Australia Posts: 675 Casino cash: $6490	droplinks for the clicking maybe, you running different anti roll bars? Rumble not sure, wheel bearing? Balance?

10-06-2010, 10:12 AM	#10
thegingerninja S5 - Full Throttle Join Date: Apr 2008 Location: Cheshire Posts: 370 Casino cash: $4367	I had a clicking noise once, turned to be one of the brakes pads rattling in the caliper. Check that the securing springs are correctly fitted and intact. Droning noise - cheapest way would be assume a wheel bearing, replace it and then road test. Wheel bearing can make some very strange and different noises in my experience when they near the end of their life. An interesting story with a 996 C4 I had: had a droning noise that increased with road speed, sounded nothing like a wheel bearing, service chap agreed with me. Long story short, they replaced the gearbox under warranty saying the the pinion bearing was goosed. Picked it up after the gearbox was done and the noise was still there! Replaced the rear wheel bearings just to rule them out - and hey presto, the noise had gone. £5000 worth of gearbox and it turned out to be a wheel bearing.....numpty's!