hey im new here and am looking for a new truck. im interested in an 03-04 silverado 1500 access cab z71 with the 5.3L. was wondering if there are any problems to watch out for in these engines or this model.

also i have found a few im interested in but am wondering if the 115-135k mile range is still a safe buy if all maintenance has been done and the original owners did everything on time and all around took care of the truck

how many miles can be expected of these trucks before problems arise?

sorry for so many questions, i really like chevy and just need some facts before buying.