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noise/whine

Discussion in 'VR - VS Holden Commodore (1993 - 1997)' started by crelok, Mar 6, 2020.

  1. crelok

    crelok Member

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    hey all,had new rotors and pads etc in for a while now,brakes are still fine.But recently when braking (every now and then) there is a whine howling when braking,usually around 90-80k`s and it remains till i take foot off ...there is no noise when driving etc just under brakes.It does not sound like brakes but i do not know.any ideas would be appreciated.
     
  2. UTE042_NZ

    UTE042_NZ Well-Known Member

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    Did you break the new pads in?
    Find a 100kph zone with no traffic behind you, brake moderate to heavy from 100kph to 50 kph. Repeat 5 - 8 times.
    Otherwise may be a resonance from (shims and/or pins) vibrating.
     
  3. crelok

    crelok Member

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    yeh,did the pads properly etc,all new grease in pins,its like a spool noise or howl while slowing.
     
  4. krusing

    krusing Well-Known Member

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    Did you machine the Disks ?, before installing the Brake Pads ?

    Could even be the Hubs, have they been replaced ?, being a VR -VS, they are getting on, and probably done a few k's.
     
  5. crelok

    crelok Member

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    all new rotors and front and rear.the hubs could be needing a change but the noise is only while braking at a certain speed and imo i think the hubs would make a noise with or without brakes?
     
    Last edited: Mar 8, 2020
  6. Trevor loves holden.

    Trevor loves holden. Well-Known Member

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    Not the tyres is it? Brakes don't howl they squeal, whine sign of wheel bearing, maybe due to extra force while braking.
     
  7. crelok

    crelok Member

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    this is new too me,hmm.im used to hj60 landcruiser and if the bearings go they just grind then boom..im trying to test it to see when it only happens and so far it is down hill and around 80k`s and a bit of pressure on pedal as well.
     
  8. Trevor loves holden.

    Trevor loves holden. Well-Known Member

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    How's the power steering pump, does it have correct amount of fluid? Also could be your ABS pump. Another thing is back axle. Sticky brake calliper pins. These are some things I read about the noise.
     
  9. crelok

    crelok Member

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    the PS level was above what it was supposed too,in the hot section when it was cold,so i fixed that.but i just noticed the auto trans level is way high,like way above the hot reading and its cold.Dunno if that is it but that needs attention now.I`ll check those other things.
     
  10. BlackVXGTS

    BlackVXGTS Well-Known Member

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    What type of rotors did you install? Slotted rotors can sometimes make a noise like you have described.
     
  11. crelok

    crelok Member

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    not slotted,but is it possible cheapish ones can be nasty like this? i brought tora rotors and pads all round.
     
  12. losh1971

    losh1971 Well-Known Member

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    Ohhhh, Tora rotors and pads......... Right......
     
  13. crelok

    crelok Member

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    even though i think i can read what you are saying,AND thennnnnn
     
  14. losh1971

    losh1971 Well-Known Member

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    Tora are cheap and nasty...... Chances are there lies the problem. If you think you have a hub problem jack up the wheels and spin them by hand. You should be able to feel roughness, like you can on a 4WD. I'd say that as the problem developed after you fitted Tora, then chances are that will be the issue.
     
  15. crelok

    crelok Member

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    ok,thanks..can you give an opinion on a better rotor and pads?..maybe a link?..thanks ahead.
     
  16. losh1971

    losh1971 Well-Known Member

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    Lots of reasonable pads and rotors for VS. If your'e on a budget RDA street or DBA Street and a set of Bendix GCT, will work as well as the OEM gear. The above should set you back around $120 - $140 for pads and rotors on eBay.
     
  17. losh1971

    losh1971 Well-Known Member

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    I run QFM HPX and RDA slotted and they are not bad but they are more expensive. Very little brake dust with QFM and the are an upgrade over OEM and GCT.
     
  18. crelok

    crelok Member

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    awesome,thanks for that...i`ll let these go a bit as i just put them in(as in the brakes work fine other than noise) and i`ll check all them out you suggested.
     
  19. Trevor loves holden.

    Trevor loves holden. Well-Known Member

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    Not good for transmission if its that high, extra fluid cause big problems from high pressure causing seals to leak, frothing the fluid causing air bubbles reducing viscosity starving parts from protection therefore grinding metal, hard shifting is another issue with to much fluid.
    Still haven't heard a brake howl or whine only high pitch squeal or grinding and scraping sound.
    I haven't used Tora my self so wont comment on them, Have to be up there close to RDA they made in china like RDA, I doubt that's the issue or they be doing it all the time, maybe sort out your trans maybe new fluid and filter to see if its not the issue facing down hill which will put more pressure on the transmission.
     
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  20. crelok

    crelok Member

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    Yeh,needs attention.was going to suck out what i think is right but maybe mite just get a mechanic to drain replace filter.thanks.
     

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