Reply to thread

Message: <blockquote data-quote="FW_Z71Burb" data-source="post: 25995" data-attributes="member: 13704">after a few weeks of long cold cranks, i started to look into fuel delivery related issues... seemed to drive fine once started and no CEL.  would turn over easily when warmMeasured fuel pressure at the rail and it was below spec fuel pump priming key on, engine off. (30-35PSI and dropped)June 28my mechanic replaced the fuel filter for meJuly 6 taking a stab at this myself before getting to fuel pump, my mechanic advised I check the fuel pressure regulator.I replaced the factory fuel pressure regulator with AC Delco P/N: 217-1582don't have a pic of the replacement part but install was fairly easy.  I wish I had bought a replacement clip as it was a little difficult to get back on securelyfuel pressure at idle[ATTACH=full]4430[/ATTACH][ATTACH=full]4431[/ATTACH][ATTACH=full]4432[/ATTACH]the long cold cranks got a little better but still not where I'd like it..I measured fuel pressure again afterwards and it had not improved, in fact it was a few PSI lower at idle, so I felt like the pump was on its way out.  drivability wasn't getting any better either.July 24my mechanic replaced the fuel pump for me, AC Delco P/N: MU2295no more long cranks, quick turning over, drove like a new vehicle again!</blockquote>