Strange Behaviour & Noise's At High Speed

SamJJJ · Post by **SamJJJ** » Fri Jan 07, 2011 5:49 pm

Hello Knowledgeable People.
I have a 1986 N12 Pulsar Hatch with auto transmission pared with the 1.6L 4cyl. engine.
Now that the technical's are out of the way, here's my problem. Driving at speeds anywhere between 60-90km/h a "vub-vub-vub-vub" noise can be heard from the front end somewhere. Between 80-90km/h the steering wheel starts to shudder from side to side (at about 60-70km/h it's more of a knocking sound with no steering wheel movement). I just had a wheel alignment so that wasn't the case. Could it be a bearing issue maybe?

Kimmo · Post by **Kimmo** » Fri Jan 07, 2011 11:49 pm

CVs, maybe?

Look, if you want a sound diagnosed, there's really nothing for it but to shoot some vid and stick it on Youtube.

et_rider · Post by **et_rider** » Tue Jan 11, 2011 7:17 am

one off the wheel waits may have fell of i have had it happen a few times have look around all your rims and see if thats the case

paul w · Post by **paul w** » Tue Jan 11, 2011 12:18 pm

Just had EXACTLY the same sound fixed; a front wheel bearing.
I was told by the mechanics that steering wheel wobble is more about wheel balance, but the 'vub-vub-vub' noise was definitely the bearing.

paul w · Post by **paul w** » Tue Jan 11, 2011 7:12 pm

Check your tyres, too - the NRMA guy that first checked my car said a defect in a tyre will cause that sound, too.

SamJJJ · Post by **SamJJJ** » Tue Jan 11, 2011 8:28 pm

See I just got the CV boots replaced & the CV's were fine so that wasn't it, just got a wheel alignment (front & back) & 4 new tires so I was also considering it may have been a bearing issue. It probably is.
Thanks so much for the feedback people, appreciate it.