The Dark Wob

That mpg wasn't under my right foot. I hadn't reset the trip computer until I left it with Major Tom. (Because the legend had worn off the end of the indicator stalk and hadn't Googled how it worked )

Did Jazoli or anyone else change the ATF and filter? I always felt it could have done with a change and there wasn't any record of it being changed in the last 10yr or so. Iirc it's every 30k/5yrs on it?

I think someone at least changed the ATF. I'll look it up again.

If you think someone changed the ATF there is no need to look anything up.

There may be no need, but I couldn't help but look it up. All that has been done by "bangernomics" is 3 L sooked oot and 3L fresh put in.

I'll do something at some point in time. It probably go for MOT on my watch - due 22nd Aug.

In the meantime I'm trying to fix the "never needs fixing" Jizz and get that in for a test before the end of June.

You mean he changed the raspberry juice without cleaning out the sieve?
Or is that a thing of old nowadays?
I noticed that no such thing needs to be done on the Peugeots, which had me a bit puzzled there for a minute until I resumed thinking of beer.

I'm assuming so. I do not endorse sooking oil out of things. I'm a drain plug man (or if the inconsiderate bastards haven't provided such a thing, I'll whip the pan off.)

In the meantime I shall consider whilst at my place of employment which knackered bush/item might be causing the rattle from the nearside rear over local roads.

I believe the boxes on these have a filter accessible. This box is one of the older purely mechanical/hydraulic controlled units. Old tech.

The 4.0l got a semi mechanical/computerised unit and the R got a fully computerised unit. If I remember that correctly...

I have a service manual as a PDF for them somewhere

Nevermind, Google found it.

Haynes: http://www.jaguardriver.nu/manualer/XJ4 ... Manual.pdf

Official Workshop: http://www.jaguarclub.sk/service/x300.pdf

If they don't work, I have the original PDFs in the downloads folder on my phone and I can upload them to somewhere.

SiC wrote: ↑Sun May 19, 2019 6:37 pm I believe the boxes on these have a filter accessible. This box is one of the older purely mechanical/hydraulic controlled units. Old tech.

The 4.0l got a semi mechanical/computerised unit and the R got a fully computerised unit. If I remember that correctly...

I have a service manual as a PDF for them somewhere

The 3.2 has a ZF4HP22 transmission which does have a changeable a filter.

Changing the oil and filter (nice and cheap Dexron II) makes a huge difference to the smoothness of the transmission changes. Being a fully hydraulic system on the 3.2 with a control cable (the 4 litre AJ6 uses the ZF4HP24 which controls the transmission electronically) - correct adjustment of the transmission cable also makes a significant difference to the quality of the changes on the car (if that is a problem). The rear engine mount (the engine is mounted in three places) also serves as a transmission mount. This is a vastly over-complicated spring system which also contains a foam isolator bush. If this hasn't been replaced it can cause a degree of driveline slop/more noticeable transmission changes too.

If you decide to replace the filter it is easily accessible on the bottom of the transmission - and (getting under the car aside) easy to change. There are a number of posts covering it on xj40.com. I can link them later.

One important thing is to get the correct filter. The filter used on the ZF4HP22 used in the 3.2 litre is not the same as the one used on the 4 litre transmission and the two are not interchangeable - the filter's 'neck' is longer on the ZF4HP24.


For the 3,2 you use JLM664

For the 4.0 you use JLM2128.

https://www.jaguarclassicparts.com/uk/j ... -4-0-litre


They are available cheaper than this from the likes of SNG Barratt, David Manners etc as an OE part.