Hey guys new here and need some help. I’m going to look at a 2002 crew cab Duramax with 70,000 miles on it tomorrow and need to know what to look for… as far as problems with it. Any help would be awesome; this will be my first diesel. Thanks in advance.

Get the warranty history for it.

Also get the VIN # and post it in 'Ask the Tech' They can get you the complete recorded history for that truck