Not been on for a while hope you are all ok.
I was driving along the A19 at about 70mph, the engine suddenly seamed to surge and rev-up then it stopped. I had not move accelerator. I coasted to the side and luckily there was a parking bay so in I went.
I had nanocom in car so I plugged in and no faults other than the over fuel pressure thing you get when it’s been chipped which is always there even when it’s running correctly but she would not start. So green flag home 100 miles.
When I got home and she was off the truck she started first time and ran for about 5 mins then stopped and again would not start until about 30 mins later.
New filters and oil change and she will run sometimes for an hour but sometimes only 5 mins then stops but always starts again after about 30 mins.
Hope someone can give me any idea what to try next as don’t trust her anymore and I should.