Hi all,
I recently purchased a 2010 Challenger (auto) and all was fine until recently I noticed surging when traveling around 45km/hr - 65km/hr. There was no smoke blowing out the back, only revs fluctuating. I have mainly been using the car to commute to work (8km each way) and it's an intermittent issue. Took it to the dealer and they said they weren't able to replicate the issue so no changes were made. I then took it to my local mechanic and he performed the following:
*Diesel intake de-carbonizing procedure
*Small quantity relearn
*Replace fuel filter
When I picked up the car, the surging went away and I thought all was fine. I went to drive to work and the problem showed up again. I took it for an extended drive today and had the gopro recording so I could show my mechanic, and I noticed that the surging was only occurring the the engine was cold. After driving it for around 15 minuites, I was not able to recreate the surging. The car has never blown smoke and the surging only occurs when the engine is cold. This would explain why the issue has only recently showed up, due to the cold mornings we're having and the relatively short commutes I have.I have done some reading through this thread but couldn't find a definitive fix. Does it sound like it's electronic related rather than fuel?