2.4 JDTM surging issue
Penny for your thoughts...
The Brera has developed a surging issue over the past two days at motorway speeds, at just over 2000rpm. This happens in around 70-80mph.
There's a noticeable bit of power loss and a constant 'juddering'.
Oddly, this doesn't happen in 1st, 2nd or 3rd gear at normal urban speeds.
No regen light on the dash (no warning lights at all, actually) but the boost gauge winds up and down constantly when this happens.
Any ideas? Anything to look for? EGR? MAF?