Page 1 of 1
Humming noise at 60 to 80kmh
Posted: Thu Jul 16, 2015 3:02 pm
by paulfer
Hi all. I own a 1997 pajero 3.5L.
Recently my pajero started a humming/almost grinding sound.
Initially, it appeared at 80kmh and abated at 84kmH. However, it has progressed to where the onset is at 60kmh and abates around 100kmh.
It does not change with revs but rather with speed and sounds like it is coming from the front.
Any ideas?
Regds paul.
Re: Humming noise at 60 to 80kmh
Posted: Mon Jul 20, 2015 12:35 am
by FootPrint
I'm sure it can be any number of things. I had a similar issue on my 2006 lwb (more or less same speed you describe). In my case I was lucky what it was the rear tyres (old Wrangler ATR if I recall correctly). After some new tyres on the rear, the humming noise was gone. Was quite surprised (but very relieved

) that tyres could made so much noise!
Re: Humming noise at 60 to 80kmh
Posted: Mon Jul 20, 2015 8:27 am
by Nick Gibson
paulfer wrote:Hi all. I own a 1997 pajero 3.5L.
Recently my pajero started a humming/almost grinding sound.
Initially, it appeared at 80kmh and abated at 84kmH. However, it has progressed to where the onset is at 60kmh and abates around 100kmh.
It does not change with revs but rather with speed and sounds like it is coming from the front.
Any ideas?
Regds paul.
Wheel bearings/hubs.
Check those, they start to growl when on their way out. Jack each wheel up and spin them by hand, you can actually hear and feel the bearing making the noise.
Sent from my SM-G920F using Tapatalk
Re: Humming noise at 60 to 80kmh
Posted: Mon Jul 20, 2015 11:15 am
by Lock
Tyres or wheel bearings. Swap the tyres around front to back and see if it changes. The tyres seem to hum if flat spotted (probably caused by a dying shock absorber

). When jacking up the wheels first spin them a couple of times and listen for the grinding. If it makes a grinding noise while in the air it might be the bearings or best of all, the brake pads. Stuck calliper?
Re: Humming noise at 60 to 80kmh
Posted: Tue Aug 04, 2015 5:36 pm
by paulfer
HI Everyone,
Thanks a lot for answering!
To date: I have changed the front bearings and I have had all 4 CV boots replaced. They have also checked the CV joints during the process.
Sadly, the noise is still there. But I am going to rotate the tyres to see if it may be the cause.
Many thanks again
Paul
Re: Humming noise at 60 to 80kmh
Posted: Fri Aug 21, 2015 12:01 am
by paulfer
HI All,
I am just checking in to let you know that the grinding humming sound has mysteriously disappeared.
I did rotate the tyres and the sound remained for approx 100km's and then just stopped!
So I am hoping it was the tyres! Thanks again all!!
Regds
Paul