General Dual logic stuck on neutral

[x Alex x]

Hi FF, got a call from my mother earlier who had broken down up the road.

When I got too it the engine was off, started it and it wouldn't go into any gear.. Apparently it just started revving as she was driving along so sounds like it put itself into neutral for some reason.

I've had a look on here but can't find any decent answers or real good info.

It does register your trying to put it into gear because it puts that annoying buzzer on after a short while, but that's all that happens.

I've had it connected to FES and it shows no errors but I don't really trust it as FES has never really impressed me.

Cheers!

 

[Mal126]

Hi FF, got a call from my mother earlier who had broken down up the road.

When I got too it the engine was off, started it and it wouldn't go into any gear.. Apparently it just started revving as she was driving along so sounds like it put itself into neutral for some reason.

I've had a look on here but can't find any decent answers or real good info.

It does register your trying to put it into gear because it puts that annoying buzzer on after a short while, but that's all that happens.

I've had it connected to FES and it shows no errors but I don't really trust it as FES has never really impressed me.

Cheers!

Clutch ??

 

[x Alex x]

Clutch ??

That's what I thought but figured it would still try and go into hear but not sure

 

[x Alex x]

Had the AA out and the lad couldn't do much, he doesn't think it's the clutch.

Not really sure where to start tbh there's not much info about fixing the dual logic.

 

[x Alex x]

I can see a lot of these being written off due to these gearboxes being uneconomical to repair in a few years.

 

[Mal126]

I can see a lot of these being written off due to these gearboxes being uneconomical to repair in a few years.

If the thrust bearing wears into the pressure plate it might still grip when trying to change gear , not allowing gears to go in, when it goes in, maybe clutch worn and slips. Just a thought.

 

[bob1969]

Does the pump make a noise when you open the drivers door?

 

[x Alex x]

It does yeah, but doesn't make the usual clicking noise when you try to shift it itl gear.

 

[bob1969]

Ok, brake light switch works? It will not go into gear unless it registers your foot on the brake.

 

[x Alex x]

Yep brake switch works.

I've checked all fuses after reading something about a faulty fuse on here.

It's just strange it isn't registering any codes .. Hmm

 

[bob1969]

Pressure side then. Have you tested the gearbox actuators?

 

[x Alex x]

No, no idea where to start.. Thanks for the help!

I've not been able to find any good info/testing procedures anywhere online and I've never worked on anything like the dual logic.

 

[bob1969]

The only forum that knows a lot are the alfa forum. Look up alfa selespeed, its a similar box , the pushrod can be adjusted on theres but not ours. It could be pressure/actuator issue if it does not select a gear ?. In FES does it show above 40 bar or above in the gearbox pressure section after the pump has primed the gearbox after the doors opened. If yes and when the engine runs and you engage first or reverse you should hear the gearbox select the gear. If it does then it is a clutch issue. The week spot on this and on manual gearboxs is drivers holding the clutch down for long periods. It knackers the fingers in the pressure plate. In the dualogic this happens when u sit at the lights and a gear is selected.

 

[x Alex x]

Thanks again for the top advice!

I found another thread and discovered how to check the oil, I don't have a spammer to remove the sphere thing, I did reconnect the gearbox ecu and battery to try it incase it was a loose connection.. It wasn't

I did notice the primer when I opened the door stayed on for a much longer time than what I remember previously.

Does anyone know what oil these gearboxes take? I'm assuming manual type stuff since its essentially a manual? Info is lacking online

 

[bob1969]

Type dualogic supplement in yahoo and it will bring up the fiat dualogic handbook supplement amongst others. The oil is Tutela car cs speed special oil with atf dextron additive. It only takes 0.7 litres of it for the hydrolic system. You will have to go to yr fiat dealer for it. The gearbox itself just takes 75w50.

 

[x Alex x]

After reading up in the Alfa forum I got some redline d4 ATF fluid as a few seem to be using it on there.

Hopefully that's all it needs

 

[x Alex x]

Bit stuck, the fluid it bank on the max mark

 

[Most Easterly Pandas]

Bit stuck, the fluid it bank on the max mark

So what are the details MES is telling you, clutch wear rate etc?

 

[x Alex x]

MES?

The lack of info online about these is so frustrating

Am I right to check the oil after it hasn't been used/drivers door opened over night? Obviously after it has primed the level drops.

 

[Most Easterly Pandas]

MES?

The lack of info online about these is so frustrating

Am I right to check the oil after it hasn't been used/drivers door opened over night? Obviously after it has primed the level drops.

MES - Multi ECU Scan, replaced FES.Yes you've checked the oil properly by the sounds of it.