Strange noises in my Gen 4

KaiV · Fri Aug 29, 2014 7:19 pm

Hi all

Lately my Gen 4 has developed a strange noise, but only on acceleration from about 115 to 130

Km/hr...

Noise sounds like a grumbling from the rear

I really cannot make out if its gearbox, diff, rear bearings, but its only when I accelerate over the mentioned speeds. I even hear it over the sound of the radio. Have removed roof rack to see if I can hear it better, but no.

Any ideas?

CATS · Sat Aug 30, 2014 10:12 pm

Might be the rear outer cv or cv inside the propshaft. What is the play like on the propshaft?

CATS

KaiV · Sun Aug 31, 2014 5:43 pm

Cats. To me, it feels fine. There is a little play, but I really cannot comment on if its too much or not.... Doesnt feel excessive.
The wheel bearings (which have been replaced after they made a noise) sound OK.
Wheels are tight,

I dunno

CATS · Sun Aug 31, 2014 9:32 pm

Maybe change the rear diff oil with new and correct spec and see if it makes a difference.

Sent from my GT-P7100 using Tapatalk

Lock · Mon Sep 01, 2014 9:31 am

I know it is an old one, but try rotating the tyres. Tyres occasionally lose their shape, causing them to "bounce" and this could cause the resonating grumbling you heard. Option B Remove SWAMBO from rear seat or avoid doing 130km...