| Home · FAQ · New Posts · My Posts · PMs · Search · Members · Members Map · Groups · Profile · Donate ·
Log In
|
- You are currently viewing DISCO3.CO.UK as a guest - Register to take part or Log In
NickJ
Member Since: 11 Oct 2010
Location: there's no f in point
Posts: 2137
 
|
Sometimes - not always - the revs will increase abnormally for half a second or so just before changing up from first to second gear (auto).
The best way to explain it is if it was a manual once it's been taken out of first, you dab the accelerator in neutral before putting into second.
It's noticable - to me - engine sound wise, and the revs can be seen to increase momentarily on the tacho.
Any ideas? No juddering when under load as mentioned in the threads about water in the ATF.
|
 8th Jan 2011 3:12 pm |
|
|
Q86ARR
Member Since: 23 Feb 2010
Location: Jersey
Posts: 378
  
|
Possibly a seized gear lever pivot? Is the gear lever stiff to move?
|
| 8th Jan 2011 6:17 pm |
|
|
NickJ
Member Since: 11 Oct 2010
Location: there's no f in point
Posts: 2137
|
Shift seems okay, this happens when leaving the transmission in drive. Sorry, I might have made the question appear as if I was using command shift.
|
| 8th Jan 2011 6:22 pm |
|
|
nickmak
Member Since: 03 Apr 2010
Location: N. London (Islington)
Posts: 391
|
I've noticed it too, and I could be wrong on this but it could be that the revs have to be higher to make sure that the shift from first to second gear does not result in too little power going into the gearbox. It could be that the engine revs the torque convertor slightly more so that there's enough torque going into the gearbox to change the gears.
It happens with autoboxes, even with the Mercs that I drive too. Visit my car detailing blog at http://maksimumdetail.wordpress.com
|
| 8th Jan 2011 6:26 pm |
|
|
NickJ
Member Since: 11 Oct 2010
Location: there's no f in point
Posts: 2137
|
True, but I think it's only started happening in the past few weeks. This is my fifth automatic car in a row and I've never experienced it before on any others. It's as if there's gap between the gears and it allows the engine to rev for a split second.
|
| 8th Jan 2011 8:39 pm |
|
|
zig
Member Since: 09 Sep 2005
Location: Scotland
Posts: 638
|
Does sound like the auto gearbox linkage is becoming stiff due to corrosion. Is any stiffness observed in moving the lever? Suggest you remove the plastic cover underneath the vehicle (runs from one side of the vehicle to the other and is held on by 6 fixings) and have a look (vehicle does not need to be jacked up to do this). If it is corroded use copper grease to help lubricate it until such time as you can fit replacement parts (approx £10).
Last edited by zig on 8th Jan 2011 11:31 pm. Edited 1 time in total
|
| 8th Jan 2011 9:07 pm |
|
|
NickJ
Member Since: 11 Oct 2010
Location: there's no f in point
Posts: 2137
|
Oh okay.... what does this link do and when does it move?
My car's an 05MY so I guess it could be getting corroded because of age. I'd seen posts about this in the past and was going to lubricate it at the time, but was too lazy and didnt think it was causing any problems.
|
| 8th Jan 2011 10:21 pm |
|
|
|
|
NickJ
Member Since: 11 Oct 2010
Location: there's no f in point
Posts: 2137
|
Thanks, job for this afternoon then 
|
| 9th Jan 2011 10:19 am |
|
|
NickJ
Member Since: 11 Oct 2010
Location: there's no f in point
Posts: 2137
|
Oh... I thought I had to take off the steel plate held in with ten 13mm head bolts. After struggling with seized bolts and alot of swearing, because I thought I could do it without raising on ramps, then putting it on ramps, got the plate off and couldnt find the link. So took the plastic plate off further back, and there was the linkage.
It looked very clean and not corroded at all, but sprayed with grease and re-assembled everything.
Serves me right for not reading the post correctly then. But at least the ten bolts are now greased up and I've looked under the car and cant see any oil leaks, which i guess is good.
Will have to see if it cures the problem
|
| 9th Jan 2011 4:49 pm |
|
|
|
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
|
DISCO3.CO.UK Copyright © 2004-2024 Futuranet Ltd & Martin Lewis
|
|
DISCO3.CO.UK is independent and not affiliated to Land Rover.
