Truck stalled with fuel pump codes

mjj · September 9, 2016

Two days ago I had been driving for about 20 minutes on the freeway, got off the exit, went up the road another 1/4 miles and turned a corner then the truck (2014 Silverado, 5.3) started to run rough, the check engine light came on, it would not accelerate, then it finally stalled as I was pulling off the road. The truck would turn over but I could not get it to start back up for about 10 minutes. Drove fine from there home. I pulled the codes when I got home and got a P023F and a P0232. Both seem to be related to fuel pump. I had close to a full tank of gas at the time and it's drove fine since and I have an appt at the dealer schedule in about a week but figured I'd throw this out here to see if any others have had this happen or have info to share. Or should I even bother having the dealer check it out at this point?

dorkweed · September 10, 2016

Not familiar with the codes on these trucks yet......................

Are those codes from the "high" pressure pump................or the "low' pressure pump???

mjj · September 10, 2016

Not familiar with the codes on these trucks yet......................

Are those codes from the "high" pressure pump................or the "low' pressure pump???

I honestly have no idea.

mjj · September 24, 2016

Update. Truck stalled again a few days later, would not restart. Dealership towed me and and got a nice 17 Denali loaner for two days. Ended up it was a bad fuel pump and it was replaced. Apparently new airbag recall came out and they reprogrammed computer for that too. Dealership was great, quick work and back on the road. Boy I miss driving that Denali it was real nice.

lehardee · March 11, 2017

When the fuel pump was goin out, did you notice any noises? A whining noise? I'm trying to diagnose some noises and poor performance I've been having. Thanks!

Lance455 · March 12, 2017

Usually they'll warn you by being alittle harder to start cold and get worst as time goes on these trucks turn over a little longer anyways so that might not be as good of indicator compare to the older days.As with the op situation when it does that the fuel pump is pretty much shot and will leave you stranded. Could be maybe a weak injector to answer your question.