2003 Yokon requires extra cranking to start

[rkvons]

5.3L

Recently, my buddies Yokon has started requiring extra cranking to start. Once started, it seems to run fine. The fuel filter has been recently changed. New plugs, wires. Any help would be appreciated for where to start looking. Thanks.

[maxwedge]

Check fuel pressures, 60-62 psi.

[yukondenali67]

Fuel pressure regulator or fuel pump,regulator will
Cost you about a hundred and the pump about 300
To trouble shoot this is fairly simple first I would start
by putting a can of fuel cleaner SEA FOAM is what I
recomend see if that changes anything or a de-icer
if its a cold weather area if its cold could be a bad fuel
Post your results Best of luck