My GC keeps on getting the loud diesel rattle between 1500rpm and 2000rpm and the motor seems sluggish through that range. Every time I take it into the dealer they simply fiddle with the software or upgrade it and the rattle goes away and sluggishness is not noticeable only to return a couple of weeks later. Getting rather tired of going back every few weeks. So a couple of questions:
- What is really going on?
- How is this permanently cured?
- Could this mean I may be parting with many dollars in the future?