The trans code could be false, due to being upset by an engine issue, or of course it could be genuine.

TCM & PCM co-operate via network packets, same as lots of the car.

The PCM relies on the sensors and so in effect does the trans, via the PCM's packets.

The smoke/smell would be what I'd focus on but I don't see how you can post a smell. Maybe a jag indy would know what it could be.

 

'The smoke/smell would be what I'd focus on but I don't see how you can post a smell'.

Thanks JagV8, I will concentrate on that. As for the smell it 100% smells like burning rubber. I have read somewhere that fully synthetic oil when burning smells of rubber; having said that, I have also read that tranny oil does too!

I am going to post a very brief video of my Cam Cover venting when the PCV is momentarily pulled in case someone will recognise whether this venting is excessive or not and I am going to fit an Oil Catcher just because I think it cannot do anything but help?
Regards,
Ray

 

I don't think there's anywhere that trans fluid can burn. (OK, what I mean is it's very very unlikely.)

Oil that drips onto a hot part of the exhaust might be it?

Burning oil has never seemed like rubber to me but it's not something I've much encountered.

 

Thanks JagV8 - I am going to put a small drop of 5W-30 oil in a small pan and stick a hot soldering iron into it - See what it smells like!

UPDATE: 5W-30 Fully Synthetic oil (when burning) has the acrid, pungent smell of rubber burning!

Regards,
Ray

 

Sounds like that soldering iron has been abused!

 

Hello JagV8 - Guilty as charged; however, It has survived the admitted abuse!
At least I now know that the PCV system is the most likely culprit. At some point I had better try to get a compression test - Although I have to say that (apart from these sporadic bursts of grey smoke), my engine appears fine and pulls extremely well, without smoking? Certainly fitting an Oil Catcher should help?
Regards,
Ray

 

I suppose it would help with a symptom but the cause may be the valve.

 

Thanks JagV8. I have been trying to establish how to test a PCV for some time (see following post). For all that I have been able to understand, my PCV is functioning correctly?? There does not appear to be a definitive method to test the valve? What I cannot understand is, if it is okay, why all the occasional smoke?
https://www.jaguarforums.com/forum/showthread.php?t=193136
JagV8, in the end, it might just be worth the £30 to buy plus £20 to ship a new PCV - Just to know once and for all whether this is the route cause of my problem?!!
Regards,
Ray