Diagnosis please.........

m2n · 13th July 2018, 09:57

A few months ago I noticed a slight "groan" noise what sounded like from the front offside wheel. It has gradually got louder, not there when stationery when engine idling so methinks not engine related. Noise not there all the time, sometimes when i accelerate i hear it, when I slow down the noise goes. I can drive for miles and not hear it, but when I have to slow down then accelerate I can hear it..... it is now louder than it first was.
Front brakes are new, I have had the front discs reglased but the noise was there before they were done.
I have took the car to 2 garages and they took the car for a test drive but could not hear anything.
Could it be the wheel bearing? Or drive shaft?
Your thoughts please gentlemen.....

snowonfire · 13th July 2018, 10:57

Sounds like it may be wheel bearing related - Do you know how to do the wobble test?
Raise the car and secure on ramps/stands.
Grab the wheel at 3/9 and pull side to side to feel for play, I tend to do this and at 6/12 turn the wheel and test again. You can also sometimes feel a rumble through the spring if held and spin the wheel.
https://axleaddict.com/auto-repair/W...-wheel-bearing

m2n · 13th July 2018, 11:33

I was thinking along the wheel bearing too, I have the car booked in for a check up, wheel bearing/drive shafts etc....any loose bits and pieces etc..etc..

mh007 · 13th July 2018, 13:57

You won't always have freeplay in a worn wheel bearing or even hear a noise from it when spinning the wheel by hand.

When you hear the noise, have you tried turning corners? does the sound change?

It does sound like wheel bearing to me too but by doing the above, it will give you a better idea if it is wheel bearing & which side It's coming from.

m2n · 13th July 2018, 15:14

As soon as i take my foot off the accelerator even just lightly the sound disappears but comes back when i accelerate and then can disappear again

Mike Noc · 13th July 2018, 22:26

Could be the outrigger bearing on the driveshaft if you only hear it when you have your foot on the loud pedal.

kaiser · 14th July 2018, 06:50

Sorry, but could it not be related to the power steering pump and low oil?
Just a shot in the dark.

mh007 · 14th July 2018, 09:21

Hmmm, this doesn't sound like wheel bearing to me in that case.

I was going to suggest AC Compressor & Kaiser has a point about the PAS pump & oil level but both of these would usually be noisy when stationary (engine running).

Mike Noc's suggestion of outrigger bearing is worth checking out.

I'm also wondering if you may be hearing the "groaning" noise from either the hydramount or the lower tie/engine mount? (as you're saying It's on the O/S front).

m2n · 14th July 2018, 14:21

Check PAS all seems good

13th July 2018, 09:57	#1
m2n Gets stuck in Rover 75 2004 Contemporary SE 2.5 Auto Join Date: Feb 2018 Location: Preston Posts: 513 Thanks: 67 Thanked 56 Times in 46 Posts	Diagnosis please......... A few months ago I noticed a slight "groan" noise what sounded like from the front offside wheel. It has gradually got louder, not there when stationery when engine idling so methinks not engine related. Noise not there all the time, sometimes when i accelerate i hear it, when I slow down the noise goes. I can drive for miles and not hear it, but when I have to slow down then accelerate I can hear it..... it is now louder than it first was. Front brakes are new, I have had the front discs reglased but the noise was there before they were done. I have took the car to 2 garages and they took the car for a test drive but could not hear anything. Could it be the wheel bearing? Or drive shaft? Your thoughts please gentlemen..... __________________ To have and not need, than need and not have. Eve was born on: Tuesday 14th September 2004 @ 07.54.23 Date of first Registration: Friday 24th September 2004 She was the: 103,715th 75 to run off production line, out of 112,381 She was the: 382nd 75 2.5 V6 Contemporary SE to be made out of 686 She was the: 1,415th 75 in Firefrost Red (code CEV) to be made out of 2,089 Firefrost Red 75's

13th July 2018, 11:33	#3
m2n Gets stuck in Rover 75 2004 Contemporary SE 2.5 Auto Join Date: Feb 2018 Location: Preston Posts: 513 Thanks: 67 Thanked 56 Times in 46 Posts	I was thinking along the wheel bearing too, I have the car booked in for a check up, wheel bearing/drive shafts etc....any loose bits and pieces etc..etc.. __________________ To have and not need, than need and not have. Eve was born on: Tuesday 14th September 2004 @ 07.54.23 Date of first Registration: Friday 24th September 2004 She was the: 103,715th 75 to run off production line, out of 112,381 She was the: 382nd 75 2.5 V6 Contemporary SE to be made out of 686 She was the: 1,415th 75 in Firefrost Red (code CEV) to be made out of 2,089 Firefrost Red 75's

13th July 2018, 15:14	#5
m2n Gets stuck in Rover 75 2004 Contemporary SE 2.5 Auto Join Date: Feb 2018 Location: Preston Posts: 513 Thanks: 67 Thanked 56 Times in 46 Posts	As soon as i take my foot off the accelerator even just lightly the sound disappears but comes back when i accelerate and then can disappear again __________________ To have and not need, than need and not have. Eve was born on: Tuesday 14th September 2004 @ 07.54.23 Date of first Registration: Friday 24th September 2004 She was the: 103,715th 75 to run off production line, out of 112,381 She was the: 382nd 75 2.5 V6 Contemporary SE to be made out of 686 She was the: 1,415th 75 in Firefrost Red (code CEV) to be made out of 2,089 Firefrost Red 75's

14th July 2018, 06:50	#7
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	Sorry, but could it not be related to the power steering pump and low oil? Just a shot in the dark. __________________ Worth his V8 in gold

14th July 2018, 14:21	#9
m2n Gets stuck in Rover 75 2004 Contemporary SE 2.5 Auto Join Date: Feb 2018 Location: Preston Posts: 513 Thanks: 67 Thanked 56 Times in 46 Posts	Check PAS all seems good __________________ To have and not need, than need and not have. Eve was born on: Tuesday 14th September 2004 @ 07.54.23 Date of first Registration: Friday 24th September 2004 She was the: 103,715th 75 to run off production line, out of 112,381 She was the: 382nd 75 2.5 V6 Contemporary SE to be made out of 686 She was the: 1,415th 75 in Firefrost Red (code CEV) to be made out of 2,089 Firefrost Red 75's

13th July 2018, 10:57	#2
snowonfire Newbie Rover 75 Join Date: Nov 2010 Location: Glasgow Posts: 7 Thanks: 0 Thanked 1 Time in 1 Post	Sounds like it may be wheel bearing related - Do you know how to do the wobble test? Raise the car and secure on ramps/stands. Grab the wheel at 3/9 and pull side to side to feel for play, I tend to do this and at 6/12 turn the wheel and test again. You can also sometimes feel a rumble through the spring if held and spin the wheel. https://axleaddict.com/auto-repair/W...-wheel-bearing

13th July 2018, 13:57	#4
mh007 This is my second home MG ZT260 SE, MG ZT190+, MG ZTT 160, R75 Conn SE 2.0, R75 Conn SE 2.5 X 3, R75 Club SE 1.8, P5B Coupe Join Date: Jul 2009 Location: Keynsham, Bristol Posts: 4,211 Thanks: 65 Thanked 635 Times in 499 Posts	You won't always have freeplay in a worn wheel bearing or even hear a noise from it when spinning the wheel by hand. When you hear the noise, have you tried turning corners? does the sound change? It does sound like wheel bearing to me too but by doing the above, it will give you a better idea if it is wheel bearing & which side It's coming from.

13th July 2018, 22:26	#6
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,550 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Could be the outrigger bearing on the driveshaft if you only hear it when you have your foot on the loud pedal.

14th July 2018, 09:21	#8
mh007 This is my second home MG ZT260 SE, MG ZT190+, MG ZTT 160, R75 Conn SE 2.0, R75 Conn SE 2.5 X 3, R75 Club SE 1.8, P5B Coupe Join Date: Jul 2009 Location: Keynsham, Bristol Posts: 4,211 Thanks: 65 Thanked 635 Times in 499 Posts	Hmmm, this doesn't sound like wheel bearing to me in that case. I was going to suggest AC Compressor & Kaiser has a point about the PAS pump & oil level but both of these would usually be noisy when stationary (engine running). Mike Noc's suggestion of outrigger bearing is worth checking out. I'm also wondering if you may be hearing the "groaning" noise from either the hydramount or the lower tie/engine mount? (as you're saying It's on the O/S front).