Auto Box Clutch?

[mint]

:angry:

 

Please help. Got a 96 Gal 2.8 Auto. Today as i was reversing the Gal wanted to keep on moving even when i put my foot on the brake. It was like the clutch wasnt disengaging!! Also happened when driving forward. Dont think its the ECU for the Auto box as i have only had this changed approx 6 months ago and it changes up and down ok. Ant ideas??

[Guest MATT]

i'm wondering if there's a switch on the brake pedal that isn't working? or maybe is being a bit Dicky?

 

MATT

[Guest galaxysam]

Been having problems with my auto box with it slipping between 2nd and 3rd then Monday moring it it did the same as yours, nearly put a big ding in the front of my other car parked behind with the newly fitted towbar on the gal !!! anyway it was still under warranty so thought thats it and back it went, afraid its got good news, mines having the auto box rebuilt at the moment.

[mint]

When you put your foot on the break i can hear the clicking noise sounding in the gear shift!!!

[Guest galaxysam]

You said you recently had a new ecu, funny that cos so have I, seems a bit of a coincidence.

[Guest galaxysam]

The clicking sound is probaly the interlock solenoid which stops you from putting it in gear without having your foot on the brake, which means the brake pedal switch is working.

 

Dont remember hearing it on mine but I cant check it at the moment, have heard it on other cars though

[johnb80]

Auto's DO keep on moving even when braking, it's the torque converter drag. Useful when manouvering etc, it should be very controlable with the brake, if it's really aggresive then double check the idle speed.

 

Regards - JB

[Guest galaxysam]

If Mints did the same as mine it was like the car was hooked up to a Massey fergusion it just did not want to stop, it also stalled out when I selected gear as well, if I selected gear and got my foot off the brake quick it was ok just could not hold it on the brake, the idle speed was fine, as sson as I drove a short distance it was back to normal.

[mint]

Galaxysam, exactly what mine is doing now. Thought about disconecting the battery and letting the Gal reset itself!!

[Guest galaxysam]

Might be worth a try, like I said I also had a slipping problem as well and they have took the gearbox out and having it rebuilt.

[MrT]

The galaxy auto does move and it will even hold itself on a slight hill and do an unassisted hill start. The handbrake only just stops it from moving, especially when cold and the engine is revving slightly and you really require the footbrake to hold it still. You should put it in park or neutral when waiting at lights.

 

It never gets close to stalling from the drag.

[Steven.Langdale]

All

 

Just been having a hunt around the net with google on this one (I'm supposed to be washing the car, but it's freezing out!).

 

Firstly, woul dI be right in assuming you have an AG4 gearbox?

 

This would appear to be the torque converter lockup clutch sticking. As others have stated, the car will, and should creep when in drive, but should not be difficult to hold or stall the engine.

 

It looks like the cluch is not disengaging. Apparently there is a measure in VAG-COM to lok at the amount of slip (or not) in that particular clutch - have you got access to VAG-COM?

 

Thoughts anyone?

 

Steven

[mint]

Thanks Steven, I couldnt tell you what box it is. The Gal is a 96. As you have pointed out its not the normal creep that you get when in drive. I dont have access to Vag Com. Any ideas where i can get access to it. Thanks, Mint.

[Steven.Langdale]

Mint

 

Is it a 4 speed box? I think it is at that age car.

 

I've got VAG-COM (recently, so quite new at it) and am in Cambridgeshire. Where are you? I'm, sure there are guys here that are nearer that would be more than willing to help.

 

Alternatively, you could try and find a local auto transmission specialist to see how much he'd charge to plug it into his kit.

 

Steven

[Guest galaxysam]

Got the gal back tonight after its gearbox rebuild, all seems ok apart from a bit of a harsh gearchange from 1st - 2nd, think I need to give it a few miles for the ECU to learn to the gearbox but its miles better than before, tomorrow morning will be the main test

[GSMGuy]

Auto's DO keep on moving even when braking, it's the torque converter drag. Useful when manouvering etc, it should be very controlable with the brake, if it's really aggresive then double check the idle speed.

 

Regards - JB

Soz John, but when you put your foot on the brake in an auto galaxy, drive is automatically disengaged... It's a standard feature to keep emissions low... thry just holding the cadr in D with the footbrake pressed only hard enought to operate the brake lights... You will feel a DEFINATE and POSITIVE disengagement of drive...... Takes it up again VERY quickly when you release the brake pedal though...... TBH it's one of the things I actually miss on my Merc, as on a very light brake pedal, and in D the Merc will creep - whereas the Gal NEVER did due to the idle stop..

 

 

Mike

[MrT]

The auto drive in both of my galaxies (Mk1 & Mk2) never disengaged when the brake pedal was touched. I use the brake pedal for controlling the speed when parking and manouvering.

[johnb80]

Auto's DO keep on moving even when braking, it's the torque converter drag. Useful when manouvering etc, it should be very controlable with the brake, if it's really aggresive then double check the idle speed.

 

Regards - JB

Soz John, but when you put your foot on the brake in an auto galaxy, drive is automatically disengaged... It's a standard feature to keep emissions low... thry just holding the cadr in D with the footbrake pressed only hard enought to operate the brake lights... You will feel a DEFINATE and POSITIVE disengagement of drive...... Takes it up again VERY quickly when you release the brake pedal though...... TBH it's one of the things I actually miss on my Merc, as on a very light brake pedal, and in D the Merc will creep - whereas the Gal NEVER did due to the idle stop..

 

 

Mike

Well mine certainly does creep which is useful for parking and it definately moves with the brake lights on. I must admit with the pedal firmly down when drive or reverse is selected there's no thud as in other auto's I've had and nor is there a momentary drop in revs. I'll pay more attention to it and report back <_<

 

Meryy Christmas to you all.

 

Regards - JB

[Guest MATT]

this is interesting, will see what happens later...

 

MATT

[GSMGuy]

if you hold the car on the brakes in D - once it has warmed up.. you should be able to feel the drive cut after 3 seconds.. It's called "static cut out" look in the TIS lol

 

Mike

[johnb80]

Well the static cutout on mine has cutout. Brake lights on, ease the pedal up, car moves forwards or backwards no problem. Release the brake pedal further until the brake lights go off, no difference.

 

Regards - JB

[Guest MATT]

Brake lights on, ease the pedal up, car moves forwards or backwards no problem. Release the brake pedal further until the brake lights go off, no difference.

Same here.

 

MATT

[johnb80]

Does that mean two of us have got the same fault or ............. the unthinkable GSMGUY is WRONG <_<

 

Regards - JB

[GSMGuy]

Definately not wrong m8.. Will post proof when I get a min... The way I noticed it was as I said, Let it move forward at idle and thenhold the car stationary in D on the brakes... After about 3 seconds you should be agble to feel drive disengage.... As soon as brake is released or accel is pressed it takes up again.. Very quickly....

 

Mike

[Guest MATT]

is that regardless of how hard u press the brakes?

 

MATT