Hi all,

My timing chain and guides got the all clear from the garage, and they drove it around a bit for 5 days with no issues, I've had it back around 2 weeks and it's been running great. Until yesterday anyway. On A34 doing 70, saw traffic ahead so I started gradually slowing down over a good few hundred metres. Just took my foot off the accelerator and a tiny bit of braking. Felt the ride went lumpy once I'd got down to 30-40mph. Lumpiness continued right down to 0mph at which point it was struggling to idle. Almost stalling really. Revs dropped down to around 400. A few pokes of the accelerator, crept forward in traffic a few metres and it seemed to recover OK. Was dreading the 'restricted performance' message for the next 30 miles home, but it never came.

Rest of the journey was fine. From a standing start it felt a bit lumpy a few times but nowhere near stalling. IID tool reported no faults when I got home.

Anyone else experienced this on the 5.0 S/C? It's happened to me a few times now and I've noticed it's only when I've been travelling at NSL followed by a long deceleration. Doesn't happen every time though!

Any help much appreciated as always.

Cheers

Could be the tc not unlocking properly, had a similar problem on a sabb which eventually failed completely and the engine stalled every time you stopped.

Thanks for the reply. What's a tc ?

TC=Torque converter in gearbox

Beat me to it lol

Torque Converter. Actually, the bit he's referring to is a clutch that is used to lock the torque converter and thus give direct drive from engine to gearbox. It gives better response and better fuel economy apparently. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Ah thank you. I thought it might have meant that, but I had no idea what it actually does so assumed I was wrong. Wasn't aware it could be involved in idling when in neutral. Cheers!

Not quite the same issue, but the idle on mine sometimes fluctuates when stationary, I think it is related to the air con. if I switch it off it doesn't do it so much but the warmer the air temp the more pronounced it is, not sure air temp would be a factor over there just now. While driving absolutely no problems and no fault codes, doesn't feel like it is going to stall either.

Cheers
Col

Happened again yesterday after about 1hr 20 mins. Idling really badly after approaching traffic. Few blips on the loud pedal and all fine again. Didn't happen on the return journey. Are there any other symptoms of a TC or TC clutch issue that I could look out for, by any chance?

Cheers all.

Happened 4 times on Saturday while on a 60 mile each way trip. Didn't cut out once, but terrible at idle. Didn't recover as fast as last time either.

I found a test on this forum where you can bring the revs up to 2000 while in D with the foot brake on. My car didn't stall when I tried it, so maybe it's not the torque converter after all

I had a 4.2 supercharged engine in a Jag. It stalled about twice a year, and threatened to once or twice more. Never found out why. Kept it for about 6 years and 60k miles. Always when the engine was warm and coasting to a stop. Thought it got better when I had the servo replaced, but turns out it don't. RRS MY17 SDV6 AB
Evoque MY17 TD4 AB