Survey by Qualaroo
+ Reply to Thread
Results 1 to 10 of 10
Like Tree3Likes
  • 2 Post By talhawaleed
  • 1 Post By Xulfiqar

Thread: Air Pressure inside Corolla 09-14 gear box

  1. #1
    Senior PakWheeler Follow
    talhawaleed's Avatar
    Join Date
    May 2009
    Location
    Islamabad
    Posts
    1,812
    Follows
    1
    Following
    0
    Mentioned
    115 Post(s)
    Tagged
    2 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    1

    Default Air Pressure inside Corolla 09-14 gear box

    I have recently observed positive air pressure built inside corolla 13 gear box with 13000 km on clock. Initially I thought the gears to be hard, so decided to open screw to check the level of gear oil as I suspected that low from factory. Oil level was ok but I witnessed the air coming out with pressure. problem with hard gears was already solved. I repeated this process after a weak and this time, still there was some pressure but lesser then before. But since then gears are smooth as cream.

    I thought, maybe it?s was a problem with my vehicle but later test drove a friends corolla 13 with only 22000 km on clock, I realized that his gears were harder than it was on mine initially. I performed the same exercise on his vehicle and witnessed air coming out with pressure. problem with hard gears on his corolla was also solved.

    I think, it?s a generic fault on this model as reference is that gears should remain as smooth as once it came from factory throughout the vehicles life span. (Provided you change the gear oil on time)

    This is public awareness message as first I think it should not be happening on such a popular vehicles. secondly I have realized that many don?t even notice that their gear shifts are harder and it does makes you feel uncomfortable.

    Rest of the user can authenticate and verify if I am right or wrong and reasons for this.


  2. #2
    Senior PakWheeler Follow
    Xulfiqar's Avatar
    Join Date
    Aug 2003
    Location
    Other
    Age
    38
    Posts
    24,402
    Follows
    131
    Following
    0
    Mentioned
    3989 Post(s)
    Tagged
    94 Thread(s)
    Problems Posted
    0
    Problems Solved
    4
    Best Answers
    0
    Good Answers
    6

    Default

    is the air vent on the gearbox blocked?
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

  3. #3
    Senior PakWheeler Follow
    talhawaleed's Avatar
    Join Date
    May 2009
    Location
    Islamabad
    Posts
    1,812
    Follows
    1
    Following
    0
    Mentioned
    115 Post(s)
    Tagged
    2 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    1

    Default

    Quote Originally Posted by Xulfiqar View Post
    is the air vent on the gearbox blocked?
    I have no idea, even don’t know the location of air vents on gear box. It’s a new car that I know and same thing I was wondering that you are the only person who would be able to provide technical insight into this.

  4. #4
    Senior PakWheeler Follow
    faiz.aslam.121's Avatar
    Join Date
    Jan 2013
    Location
    Oslo
    Age
    21
    Posts
    7,464
    Follows
    5
    Following
    0
    Mentioned
    148 Post(s)
    Tagged
    4 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    My initial gears are only hard(1st and 2nd) on cold starts, after a few KM they are fine.
    This air pressure thingy, very interesting. A nice share
    Turbo lag is like foreplay. You know it's coming. And it's gonna be good.

  5. #5
    Senior PakWheeler Follow
    argtr65's Avatar
    Join Date
    Dec 2008
    Age
    51
    Posts
    1,645
    Follows
    1
    Following
    0
    Mentioned
    74 Post(s)
    Tagged
    7 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    There is vent at the top off gearbox for breathing which helps to remove moisture that may build up internally due to condensation,get this vent checked it could be blocked.Also check transmission oil for over filling.
    Never loose hope in life,every step gives u something.

  6. #6
    Senior PakWheeler Follow
    talhawaleed's Avatar
    Join Date
    May 2009
    Location
    Islamabad
    Posts
    1,812
    Follows
    1
    Following
    0
    Mentioned
    115 Post(s)
    Tagged
    2 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    1

    Default

    Quote Originally Posted by argtr65 View Post
    There is vent at the top off gearbox for breathing which helps to remove moisture that may build up internally due to condensation,get this vent checked it could be blocked.Also check transmission oil for over filling.
    If you can post a picture then that would be very helpful also for other members.

  7. #7
    Senior PakWheeler Follow
    mansoor_qadir's Avatar
    Join Date
    Sep 2012
    Location
    Attock
    Posts
    1,476
    Follows
    1
    Following
    1
    Mentioned
    11 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    1

    Default

    Strange info.but i didn't faced any problem with my corolla's gear...they were always great to shift..
    <..If everything seems under control, U r not going fast enough..>

  8. #8
    PakWheeler Follow
    Khurram26's Avatar
    Join Date
    Dec 2006
    Location
    Islamabad
    Age
    38
    Posts
    275
    Follows
    0
    Following
    0
    Mentioned
    13 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    1
    Good Answers
    0

    Default

    Quite expected from local manufacturers since they are least concerned about following prescribed procedures.
    I bought an Altis in 2005 when it was first launched. Only a few days later I noticed that the rear brake lights didnt work unless the brake pedal was pushed to almost jamming position. Turned out that the switch for the brake light was adjusted all the way down and it took quite a lot of pedal movement to trigger the brake lights.
    It is a lethal mistake, the lights ought to turn on even if you touch the pedal. But .... thats how they are!

    Sent from my SM-N900 using PW Forums mobile app

  9. #9
    Senior PakWheeler Follow
    Spano's Avatar
    Join Date
    Dec 2006
    Location
    Islamabad
    Age
    34
    Posts
    6,895
    Follows
    21
    Following
    1
    Mentioned
    321 Post(s)
    Tagged
    2 Thread(s)
    Problems Posted
    0
    Problems Solved
    1
    Best Answers
    1
    Good Answers
    1

    Default

    check the breathing vent.

    Plus, you see the air coming out of it. perhaps its in and out but too fast so you can see only out
    Ehtesham Bokhari
    https://www.facebook.com/sebokhari

  10. #10
    PakWheeler Follow
    zeeshan.hasan's Avatar
    Join Date
    Nov 2013
    Posts
    103
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Sent from my GT-I9300 using PW Forums mobile app

+ Reply to Thread

User Tag List

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •