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Rough gear changes

Discussion in 'VZ Holden Commodore (2004 - 2006)' started by KrisHolden, Dec 26, 2011.

  1. KrisHolden

    KrisHolden Member

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    Not being able to compare the car to others with a similar motor, I wanted to ask drivers of the Alloytec 190 V6 if you too (in power mode) experience on the occassion some pretty rough gear changes? By that i mean you feel the whole car jolt when it changes gears.

    Although the car is still 15000kms away from a major service I was also wondering whether it was worth getting spark plugs and transmission oil change done at a genuine holden and just pay what they want. The car seems to be using a lot of fuel too. I fear getting an apprentice at my usual mechanic place (kmart) and them messing up something especially with the transmission which would cost me big in the future.

    Any thoughts?
    thanks!
     
  2. FstStig

    FstStig Diagnostician

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    That's the risk you take, taking it anywhere. Not all Apprentice are bad when they first start out, some do have a lot of experience working on cars. If they stuff it up, they have to pay for it. Simple! I would probably take it to your usual Mechanic, they probably wont charge you an arm and a leg after it.
     
  3. m1lky

    m1lky New Member

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    Or do it yourself. Neither of those jobs are particuarly difficult with a socket set and a bit of time
     
  4. Munz

    Munz Right Foot Action

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    the power button firms up the shift
     
  5. VYMAD

    VYMAD SILVERFOX

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    I'd do it all myself if I was me...lol.
    Anywhere you go, you're risking the apprentice doing the work.
    As for 'rough' changes with power on, my VY does it slightly jerkier than with power switch off. If you're talking really jerky/rough, though then get it seen to. It shouldn't be TOO much rougher than in normal mode.
     
  6. m1lky

    m1lky New Member

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    Autos almost always change like new again after you do the fluid. Very recommended
     
  7. KrisHolden

    KrisHolden Member

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    Thanks guys for your responses.

    As mentioned, there is some risk on my part. I will most likely take it to my usual mechanic (Kmart Auto) and ask them to ensure all genuine oils\parts etc. Unfort I cant do this sorta stuff myself as Im not in this field of work.

    The car is almost always smooth when power mode is off. When power mode is enabled, the gears change smooth when gearing up, but when the gears go down I really feel the gears changing and slowing the vehicle up especially at the lower speeds. A VE i drive with Alloytec 190 is much smoother. Just wasnt sure why I was getting such hard gear shifts.

    When you say change the transmission fluid is that the same as changing the transmission oil?
     
  8. m1lky

    m1lky New Member

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    Fluid/oil same thing. Sorry for any confusion.

    There's also a filter that's worth replacing.

    There's a how to for changing it.
     
  9. impulsive

    impulsive Alloytec Racing

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    The PWR holds it in gear longer, doesnt change any shift pressures..
     
  10. KrisHolden

    KrisHolden Member

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    Thanks for the clarrification :)
    When the time comes, I will definetly get them to change the filter. I really dont feel competant servicing my car, but I do have a good relationship with my mechanic as I give him a lot of business.
    Thanks for your help :)
    Yeah, thats interesting to hear. Really not sure why its only happening in power mode. I might just get the transmission oil changed and filters along with its next service (hoping its a job thats easy for my mechanic).
     
  11. VZCALAIS190

    VZCALAIS190 New Member

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    Mine does it aswell when cold, shifting down to 1st from 2nd. Don't know if it's normal but only does it a couple of times when cold.
     
  12. vr wagoon

    vr wagoon New Member

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    Mine also shifts hard with power button on. Sometime even get a slight cherp if I'm lucky! Will be giving my trans a
    Service next oil change. Anyone know I should buy a replacement kit from?
     
  13. Rusty

    Rusty ٩(-̮̮̃•̃)۶

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    Can get them from supercheap / Repco or Holden etc. Kits will range from $15 to about $50 and that will give you a filter and gasket. I use the basic cheap kit and never had an issue. Just ensure you don't under or over fill the fluid afterwards!
     
  14. m1lky

    m1lky New Member

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    Price the genuine kits. The filter kit (with gasket) from Gmh nz was cheaper than the Repco one for my vs. Don't over tighten the sump bolts as they can strip.
     
  15. Trent L

    Trent L New Member

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    I must confess to changing my tranny fluid & filter @ 100k along with plugs, coil packs + front O2 sensors & diff oil. That's just me, but the transmission oil was definitely discoloured with an unusual smell. I just reckon 150k is a big ask from any oil.
     
  16. Munz

    Munz Right Foot Action

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    Sounds like it might be better with a full flush due to the km's rather than just 4 litres of fluid. Also the smell is norm for trans fluid.. try taking a wiff of diff oil - shi7 stinks
     
  17. VYMAD

    VYMAD SILVERFOX

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    I used to change it every 20,000 but now only 40,000 mind you I don't cane it or do any towing.
     
  18. m1lky

    m1lky New Member

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    Holden spec every 80k for tranny fluid. My old vs was done at 80 and 170. Changed beautifully at 190 when I sold it.

    Did diff oil for the first time at 170k. Diff was so much quieter after, but still whined quite a lot.
     
  19. impulsive

    impulsive Alloytec Racing

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    Not for the alloytec, fairly certain the first change for tranny is up around 120,000. The gearbox is designed to require little to no servicing
     
  20. torana355

    torana355 Member

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    Im pretty sure it does up the line pressure, mine shifts much firmer and quicker in PWR mode. OP, yes the car can have some really firm or even rough gear changes in PWR mode. I noticed this even more when i changed my diff ratio to 3.46's, especially on the downshift.
     

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