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E46 transmission problem

Discussion in 'E46' started by dancch, Jul 6, 2011.

  1. MadZiZ

    MadZiZ Club Guest

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    Haha....i got a 6 potter 2.2 engine with gearbox i am looking to let go off.......:p Low milage below 55k done on it.....:)
     
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  2. HafizMNas

    HafizMNas Club Guest

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    My E46 broke down by the third day of Raya, try to find an operating workshop is one thing and after that got a tow service suggested me for a workshop (See Wide) Kuala Terengganu. Delivered and diagnosed by the mechanic they find out it was a Torque Converter and Oil Pump malfunction. I have to wait for approximately a week for the parts shop to re open for business. The mech suggested to me for a total overhaul for the gear box but it was way to expensive for me (cost about RM7500), so I just did the repair for the malfunction parts only(Cost about RM3800).
     
  3. wingzee

    wingzee Club Guest

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    What are the symptoms of prior to the TC and oil pump failing? I am suspecting my ride may have similar issues as gear change for certain gears are jerky. No fault codes for the gearbox so far though.
     
  4. jarance

    jarance Founding Member

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    There are no symptom when the Aux oil pump will failed. When it goes, all the ATF will gush out from the failed oil seal bushing.

    The problem of the failure is cause by the failure of the Gearbox support mounting. When the rubber is harden or cracked,
    it will cause the GB and engine and drive shaft to be misaligned. This misalignment will put undue stress on the shaft of the
    the torque converter and bushing of the aux oil pump. The shaft of the TC will wear down and ATF will leak out. When the
    bushing fail, the ATF pressure will force the ATF to spurt out of the GB. White smoke will come out from the ATF splashing
    on the exhaust..

    So change the GB mounting if you have not done so. it only will cost you a few hundred buck as compare to RM2K for the
    replacement of the aux oil pump and TC.

    Your GB problem could be due to sticky solenoid valves or the wrong type of ATF being used when you change the ATF oil.
     
  5. HafizMNas

    HafizMNas Club Guest

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    Yes my ride also jerk couples of times when the gear changed before it break down. i thought it was a clutch problem. Until it crash into an oil spill and little noise while driving, I stop by and asked for a tow service.
     
  6. jarance

    jarance Founding Member

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    change the GB mounting every 3 to 4 years.
     
  7. HafizMNas

    HafizMNas Club Guest

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    Thank you so much for your info Jarance, yep, the mech did told me that the shaft was misalignment, my TC shaft weared , ATF leaked and splashed out and I noticed it when the white smoke came out from my car. Exactly happened like what you've said.
     
  8. wingzee

    wingzee Club Guest

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    I have checked mine a month ago and all seems fine according to mech, no cracks. Just replaced the rear axel mounting. Are sticky solenoid valves detectable via diagnose? Mine only jerks when upshifts (always during 3rd to 4th gear from my observation). However, there is no jerks at all throughout the gears if I'm on tiptronic mode.

    Did went to M-Scope once few months ago and was unable to detect any fault at all during diagnose and wasn't able to replicate the jerk as mostly happen only during uphill, steep ascend.

    Am prepared to fork out 5k just to replace the GB (if it's faulty) but just would like to know the root cause for now.
     
  9. teighlour

    teighlour Club Guest

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    After reading through this thread, I find my car jerks when descending from a slope and going from 3rd to 2nd gear around the speed of 30-40km/h. Other then that, no jerks during shift of gears upward. Not sure if this is a sign of GB problem....hhmm
     
  10. anaksarawak

    anaksarawak Official Member

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    May I suggest that you check your gearbox with a specialist like M scope before it turn worse. Sometimes it's just the wrong ATF fluid or valve body need cleaning.

     
  11. Pavint

    Pavint Club Guest

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    Hi I am having the same problem,car jerks when accelerating but then it's ok,when stop at traffic light and accelarate again it jerks.after I off the engine,there is smoke from the engine,but temp gauge all normal,no warning lights,any advice,is it my gear box
     
  12. anaksarawak

    anaksarawak Official Member

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    Don't delay, have your car checked by professional. The problems can be from many reasons.
     
  13. wingzee

    wingzee Club Guest

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    Went to M-Scope and they couldn't detect any fault bro. May try Bomin when I go for my regular oil change next month.
     
  14. anaksarawak

    anaksarawak Official Member

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    Call me when u going to Bomin ya as I wish to install an aftermart ATF cooler/radiator plus change my ATF fluid to petrol Canada dexVI Cheers
     
  15. wingzee

    wingzee Club Guest

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    Sure bro. Will be going with IceDuke next month. Another 1k km to go on my odo for an oil change.

    ATF cooler you may need to go to M-Scope as I don't think Bomin does that. ATF fluid is okay. :)
     
  16. zidee

    zidee Active Member

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    bro Jarance,

    My son E46 2.2 has the exact problem you describe. Upon checking the gear box mounting has cracked. Oil pump damages and oil gushing out with white smoke as well on the tail. Since there is a sign of metal debris on the magnet in the pan, I've been advised to rebuilt the gear box instead of just change the oil pump.
     
  17. jarance

    jarance Founding Member

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    I was also told to rebuilt the gearbox as well. I ask the wshop to hold the work first. Since the GBox is going to be dismantle for the replacement of the Aux Pump, you can inspect the condition of the internal part before deciding on whether to rebuilt or not. As for me, I drove about 50KM to the workshop when the oil was gushing out. When they drain the oil, there was about 1 liter left. Luckily for me, there was no metal filling in the oil.
    Wshop also told me the Gbox internal part was clean when they examine it.

    So, I just change the aux pump and later the Torque converter as it was found the shaft was worn out. BTW, got a second hand for the TC.

    BTW, the magnet in the oil pan will catch some metal filings. This is normal. I have seen this when I change the ATF oil during one of my routine maintenance.
    [​IMG]
     
  18. zidee

    zidee Active Member

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    Yes I can see the condition of the magnet is a about the same. Quoted me about 2.6k to replace/fix the Aux Pump. I don't think that included TC fix as well.
     
  19. bmadzi65

    bmadzi65 Club Guest

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    Argghhhhh.....reading all these gb issues scare me a lot. I change my atf every 35k to 45k of mileage and really hope this will last my gb for longer time to serve me.
     
  20. zidee

    zidee Active Member

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    Ironically I've just change the ATF oil couple of week back
     

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