help. truck is hard to start. checked fuel pressure (45 psi) is this ok? check EGR valve. check ground strap. after starting it runs good but hot or cold . Its hard to start.(just cranks over). Thanks for any input .Randy, PS 2001 5.3 v8 4x4 with 60000 miles

Have that battery tested. Otherwise:

I can't recall, but 45 psi sounds ok. The fuel pressure regulator develops a tiny leak on the 5.3 and is a very cheap do-it-yourself.

Indeed I had same problem with my 2000 Silverado 4x4 As stated check on a fuel pressure regulator. a new one solved my problem