Land Rover Repair: 2003 HSE7 Discovery II problems!, rocker shafts, wrist pin

Question
I just purchased this vehicle new & drove it home over 400miles.There's a tapping sound which is getting quite loud, the service engine light is on & when it starts flashing,the car feels likes its jerking & almost has trouble accelerating properly.I was told it might need new lifters along w/ a few other things.Can you offer me some advice what you think it sounds like or if you need more info from me,please let me know & I'll be happy to let you know anything else.I'm scared to drive it much more w/ out some servicing.Thanks

Answer
The tapping could be a catalyst, rocker shafts, or a wrist pin.  All are common, none are life threatening.  Of course, it could have a more serious and less common issue too - there is no way to know without checking.  I'd suggest you find a Land Rover expert and ask him to listen and render an opinion.  We are in Springfield, MA but there are LR people scattered over the country