Duramax LLY fuel pressure regulator replacement

[@dingdingding4033]

I've had issues i THOUGHT was the fpr going out... but it was the fuel temperature sensor!! It was a cheap easy fix in comparison to the FPR.. however, i did end up buying a new FPR and CP3 pump (which i haven't installed yet) but the new fuel temperature sensor fixed all of my issues with poor mileage, rough idle, stalling, smoke, acceleration, fuel knock, very hard starts, poor shifting.. $35 dollar part and the truck runs great now

[@crazypeople4x4]

Had no idea that sensor existed. I'll keep it in mind for the next time.

[@kendrickcumbee1520]

How did you know the pressure regulator was bad.

[@crazypeople4x4]

Running parked or sitting at a light, it would act like it was going to stall. However ran perfect cruising down the highway. Put a scanner on it and the desired vs actual was jumping all over the place. Replaced with OEM and back to normal.

[@hiltonlandingham]

Hey did it misfire hella an white smoke a tad while misfiring having this same issue an bout to replace this weekend

[@crazypeople4x4]

@@hiltonlandingham ya you think it's about to die sitting at a light, haha. Didn't have any white smoke though that I noticed. Can't rule out an injector going bad also as an option.

[@hiltonlandingham]

My y bridge is welded on is your????

[@crazypeople4x4]

@@hiltonlandingham there are 2 bolts and 2 studs with nuts on the front easy to see and back hard to see especially the back bottom ones