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Thread: gearbox gone?

  
  1. #1
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    gearbox gone?

    hi,
    just few days ago my car ('01, zlet coupe) started to create strange noise. afters some investigations i located possible location..so somewhere near gearbox/cluch.
    gears are shifting normaly...no crunch when selecting gears...all smooth and quiet! also absolutely no probs at load. but when during driving i just take of my foot from gas pedal (gear is in..no matter which one)...there is constant cracking noise....like two gearwheels are hitting each other.
    just 4-5 days ago absolutely no problems and stange noise were there. no hard driving and recent repairs. also no traces of oil leak from box. car runs standard map, no major upgrades.
    any ideas??? new gearbox???
    Astra Coupe Turbo / LPG conversion

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    noone?
    ok what is the symptoms of broken driveshatf?
    Astra Coupe Turbo / LPG conversion

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    aussiegman's Avatar
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    Prob not a driveshaft...Possibly a CV joint...

    Check if there is a CV boot torn and grease leaking from it...Or maybe a wheel bearing, but more likely a CV joint...

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    CV joint ok, no leaks. rubber not damaged today lifted car, and cecked oil level in geabox.oil is in right level...an looks good..not black, no metal stuff in it. totaly confused... will drive until car will stop...
    today during hard acc in 2-nd ger approx at 5.5k rpm somethink has startet to queech...and i started to suspect my cheep Luc clutch
    Astra Coupe Turbo / LPG conversion

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    Mike Tucker's Avatar
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    My 06 SRI Coupe has a similar problem and we found that it was broken teeth on the pinion gear and planetary gears in the diff. I think it was the planetary gears which probably went first then the metal particals being washed into the pinion gear. I have just bought a second hand box out of another 06 SRI and looked at the gears and they have the same problem!!

    My car had the same cracking noise when reversing and on the over run.

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