Every so often, my 2008 Chrysler Town and Country feels like it holds back: the speed stays the same, but the RPMs go up. It makes a funny sound.
It will stop for a couple of days, but then, it happens again.
It has no diagnostic trouble codes (DTCs) for the transmission or engine. It has a big oil leak at the top of the engine.
- What could be causing this?
- How do I diagnose this?