4.2 vogue se s/c gearbox

Lonestar · Sep 2, 2018

Location:
Cheshire
Hi guys,
Slight problem, 1st gear pull away steady to quick ok. Pull away with a bit of a squirt doesn't want to change up! Any ideas? Your thoughts please.
Thanks in advance.

JohnM70 · Sep 2, 2018

Hi, are you stuck somewhere or is this purely a technical question?
Ta

Lonestar · Sep 2, 2018

Hi, thanks for getting back, it's purely technical at the moment, just frying to find out if I have a major issue or not as only recently bought it.

JohnM70 · Sep 2, 2018

Lonestar said:
Hi, thanks for getting back, it's purely technical at the moment, just frying to find out if I have a major issue or not as only recently bought it.

Ok cool, you may want to post your questions in the Range Rover section, you’re likely to get better answers.

I will tag @blue beasty so he can move it.

Regards

Lonestar · Sep 2, 2018

JohnM70 said:
Ok cool, you may want to post your questions in the Range Rover section, you’re likely to get better answers.

I will tag @blue beasty so he can move it.

Regards

Thank you.

goonarmy · Sep 2, 2018

Sounds like the kickdown is working or is it over reving in first?

Lonestar · Sep 2, 2018

Hiya,
Thanks for that, would this stop the gearbox from changing up?

goonarmy · Sep 2, 2018

Lonestar said:
Hiya,
Thanks for that, would this stop the gearbox from changing up?

Yeah. Kick down is also when the gear box drops a cog when you are travelling and then boot it.

Lonestar · Sep 2, 2018

So is that a gearbox fault or another component?

Lonestar · Sep 2, 2018

Sorry, this only happens from standstill so will it still try to kickdown in first?

goonarmy · Sep 2, 2018

Lonestar said:
Sorry, this only happens from standstill so will it still try to kickdown in first?

What? What gear will it go down to from first?

Lonestar · Sep 2, 2018

Exactly right, so i dont think it will be the kick down so what does that leave, could it be the the accelerator cable or a transducer on the pedal?

gold rover · Sep 2, 2018

@wammers ,@Saint.V8 , @holidaychicken ........ other members are available but these three spring to mind.
Andy, put the keys down and step away from the vehicle

Datatek · Sep 2, 2018

Lonestar said:
Location:
Cheshire
Hi guys,
Slight problem, 1st gear pull away steady to quick ok. Pull away with a bit of a squirt doesn't want to change up! Any ideas? Your thoughts please.
Thanks in advance.

Pull away with your boot on the floor and up shifts will occur much later and probably at or near peak rpm.

jamesmartin · Sep 2, 2018

Lonestar said:
Hiya,
Thanks for that, would this stop the gearbox from changing up?

it can do if its stretched

Lonestar · Sep 2, 2018

Thanks guys,
Its just when you need to get away quick from a junction it gets going ok but seems to go off the scale and doesn't want to go up the box into second to continue the acceleration. It's driving me crazy so I have to pull away steady until it's in 2nd and then I can floor it if I wanted and all ok . Please help!!!

holidaychicken · Sep 2, 2018

I think you have the ZF6HP, I have read through this in the past which may apply to your vehicle , again I always default to reading diagnostic codes first if possible.
There is mention of not upshifting on this flow chart but that says after a down shift.

https://www.jaguarforums.com/forum/...leshooting-zf-trans-troubleshooting-guide.pdf

Grrrrrr · Sep 2, 2018

When was the fluid last changed?

@Bemble is the gearbox god.

Lonestar · Sep 2, 2018

Apparently it had a gear box service including flush and oil change.

jamesmartin · Sep 2, 2018

Lonestar said:
Apparently it had a gear box service including flush and oil change.

we are talking a 4.2 classic ?

4.2 vogue se s/c gearbox

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