Against my advice, a buddy of mine bought a 2003 Duramax truck

2 weeks later it's at the dealership and it sounds like it's time for new injectors (200K miles).

While he's going through this truck, is there anything else he needs to take care of? Any other problems that might pop up? Thanks.

 

Tell the dealer to make sure they get the lines actually tight or it'll spray fuel everywhere, even down the side of the truck.