please help
Posting Guru
Joined: Nov 2010
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From: WY
YIKES!!! Did the truck shut itself down? Did it run worse? Could it be the low pressure fuel pump? If you shut it off, does it reset?
Sorry for all the ?'s. Wish I could help. Let us know what happens.
Sorry for all the ?'s. Wish I could help. Let us know what happens.
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Junior User
Joined: Mar 2013
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Ok for an update I drained the water separator and no water. Went to change the fuel filters out, got the one under the hood just fine. Went to change the one on the rail and broke the housing finally got my new housing $29.95. Got it all put back together and running good.. what a busy morning!
Posting Guru
Joined: Nov 2010
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From: WY
WHEW!!
Just curious, did you shut it off and try a restart prior to changing the filters?
Also, I assume since no water in DFCM, everything else looked okey dokey?
Glad you're up and running. Thanks for the feedback.
Just curious, did you shut it off and try a restart prior to changing the filters?
Also, I assume since no water in DFCM, everything else looked okey dokey?
Glad you're up and running. Thanks for the feedback.
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From: Isanti, MN
This is typically an indicator of plugged fuel filters and nothing more. If your fuel gels in the winter this will be the first symptom. It is NOT a telltale sign of HPFP failure in any way, nor does it have anything to do with water in the fuel system.
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Fleet Owner
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From: Wisconsin
I think you guys are getting worked up over a common issue that doesn't mean trouble of any sort. There is a pressure switch near the secondary fuel filter that opens below 75 PSI(IIRC) and alerts the driver through a warning indicator. It also reduces power output in order to protect the HPFP from fuel starvation.
This is typically an indicator of plugged fuel filters and nothing more. If your fuel gels in the winter this will be the first symptom. It is NOT a telltale sign of HPFP failure in any way, nor does it have anything to do with water in the fuel system.
This is typically an indicator of plugged fuel filters and nothing more. If your fuel gels in the winter this will be the first symptom. It is NOT a telltale sign of HPFP failure in any way, nor does it have anything to do with water in the fuel system.
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From: Isanti, MN
Originally Posted by SavageNFS
It had potential to be something major and it wasn't.
Originally Posted by Savage NFS
Turned out to be a simple fix and I'm happy for that. I never got worked up and I didn't get the impression Ron did either, but thanks for judging the situation after the fact
Fleet Owner
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From: Wisconsin
See this is exactly how forum discussion escalate. You're a good guy Tom, but I didn't appreciate you saying Ron and I were getting worked up, that's it. If you want to turn it into something that it wasn't be my guest.
Ron and I have never jumped on any of the HPFP hype or participated in those threads in a negative manner.
Ron and I have never jumped on any of the HPFP hype or participated in those threads in a negative manner.
Super Moderator
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From: Isanti, MN
See this is exactly how forum discussion escalate. You're a good guy Tom, but I didn't appreciate you saying Ron and I were getting worked up, that's it. If you want to turn it into something that it wasn't be my guest.
Ron and I have never jumped on any of the HPFP hype or participated in those threads in a negative manner.
Ron and I have never jumped on any of the HPFP hype or participated in those threads in a negative manner.
Posting Guru
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From: WY
It's all good. 
I didn't think I was worked up either. I was simply trying to show genuine concern for the guy. If you look at his post time versus mine, which when I started posting there was no other replies to his original, there was 1 1/2 hours and no one had replied to his question. I was trying to brainstorm with him. I did throw out the low pressure fuel pump as a possible cause, and asked if it reset upon a re-start. None of what I posted, I don't believe, insinuated a HPFP problem. Oh well, it doesn't matter. The problem is fixed for now, and I for one learned something new.
Savage, thanks for watching my back while I was at Wally World.
Tom, it's Friday buddy. Hopefully the long work week will melt away soon. The problem with texting, posting, e-mailing, etc. is you can't see someones face and body language over the airwaves. I try to be careful what and how I write on these social medias because it is sometimes very impersonal.
Hope all have a good weekend while I go work my four night shifts.
I didn't think I was worked up either. I was simply trying to show genuine concern for the guy. If you look at his post time versus mine, which when I started posting there was no other replies to his original, there was 1 1/2 hours and no one had replied to his question. I was trying to brainstorm with him. I did throw out the low pressure fuel pump as a possible cause, and asked if it reset upon a re-start. None of what I posted, I don't believe, insinuated a HPFP problem. Oh well, it doesn't matter. The problem is fixed for now, and I for one learned something new.
Savage, thanks for watching my back while I was at Wally World.
Tom, it's Friday buddy. Hopefully the long work week will melt away soon. The problem with texting, posting, e-mailing, etc. is you can't see someones face and body language over the airwaves. I try to be careful what and how I write on these social medias because it is sometimes very impersonal.
Hope all have a good weekend while I go work my four night shifts.
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I am very good with my maintenance I replaced both fuel filters 7500 miles ago. I am guessing I ran into a bad batch of diesel on my last fill up. I also did not believe it was an hpfp failure but I did want to get some ideas brainstormed since I'm away from home at work. Have a great weekend all! And I'm with you on working nights 12 down 2 more to go then its back home for days off!
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Joined: Aug 2003
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From: Isanti, MN
I am very good with my maintenance I replaced both fuel filters 7500 miles ago. I am guessing I ran into a bad batch of diesel on my last fill up. I also did not believe it was an hpfp failure but I did want to get some ideas brainstormed since I'm away from home at work. Have a great weekend all! And I'm with you on working nights 12 down 2 more to go then its back home for days off!
I think this is the reason the pressure switch exists, as you were able to solve the concern without starving the HPFP which could potentially cause serious issues down the road. The system worked as designed.