Petrol 3.5 engine with 722.9 7 speed gearbox, Dec 2007 build.
Noticed last night when on a gentle motorway run to pick up some friends from the airport that I have an issue with fluctuating rpm.
I was on cruise at 55mph as I was running a bit early and noticed the rpm was fluctuating by up and down by around 100rpm every few seconds on a flat surface. Upped the speed to 70mph and found the same was still happening.
I've read this can happen on the TDs if you have a split hose etc, can anyone speculate as to why this may be happening on my NA 3.5 petrol?
Noticed last night when on a gentle motorway run to pick up some friends from the airport that I have an issue with fluctuating rpm.
I was on cruise at 55mph as I was running a bit early and noticed the rpm was fluctuating by up and down by around 100rpm every few seconds on a flat surface. Upped the speed to 70mph and found the same was still happening.
I've read this can happen on the TDs if you have a split hose etc, can anyone speculate as to why this may be happening on my NA 3.5 petrol?