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Well, finally got the truck running back normal again and was going to take it out in the countryside to some property I have with a friend about 75 miles away from everything. Got the truck loaded up and ready to go and as the fuel pressure was just a few pounds low recently thought I would adjust it up a bit and did so in the driveway before leaving. It always runs a good 16-17 psi at idle, and down to a low of 12-13 at WOT. Steady running at 14-15 psi which is fine with me. Got on the road and headed out in the boonies early this morning. About 15 miles out noticed that the fuel pressure was down again, sometimes even hitting 10 or less, which then triggered the alarm on the Edge. Stopped on the side of the road and adjusted the fuel pressure on the Raptor back up to 18-20. Drove another 3-4 miles and it started doing it again. Now I am not one to do silly things like pee on electric fences and the like, so when something like this happens three times in a row, its time to take a hard look at whats going on and make a decision. Yep, I headed back into town because where I was is in the middle of absolute no-where and tow trucks are a long ways away. Good choice as within 5 miles the fuel pressure was not only below 10, it was down to 3-4 psi at times. Another couple of miles and it was at ZERO... was on the hiway by then going 50 in the slow lane with my flashers on. Made it to the turn-off and truck was then bucking from time to time. Idle speed and sound was fine but sure was down on power. You could tell that the engine was not happy. Last turn onto the main road to my house and I was down to 2-3 cylinders and not sure I would make it, but Mr. Cummins builds a strong engine and we chugged to the house like this. Smelled some difficult smells coming from the engine compartment and guessing that the VP was not happy with no cooling fuel and has signaled that its time that I learn how to change a VP. Anyone ever had anything like this happen? The Raptor 100 is less than two years old and until this time been very reliable. I have a call into PF/Raptor support but no return call yet... Any suggestions on which VP to get and sources? I am looking for a good price but would rather have one with a new or upgraded circuit board on the pump if possible. Thx, Joe --- Update to the previous post... Well, its been a difficult and wasted morning for the most part. Called Pure Flow to get raptor support and they told me that I had to call their Indiana facility. Called there and was shuttled to someone's number and it went direct to voice mail. Left my number and 2.5 hours Kyle finally calls me back. What a JERK! I had bought this Raptor 100 in October of 2009 from Vulcan Performance. First pump I received was dead out of the box so I called Vulcan and they shuttled me to PF who was at that time still producing product in Missouri. They took a week to get me a new replacement pump as they did not any gears left to make new pumps... Finally when they got a new one made they shipped it overnight on their nickle and its been running fine since that time. Evidently now production has shifted to Indiana and if you have a newer model product you have to go there. Older stuff are still supported by the Missouri office... thank God. Well, Kyle could care less about customer service but sure wanted to know the pump number and if I had sent the warranty card in, which I had done. Well he could not find the warranty info in his computer then told me "you must have bought this before Nov/Dec of 2009" so while I have 98% of all listings from this time frame, if you are not in my computer you get NO warranty!" I guess customers from anytime before fall of 2009 are worthless to him, or he sure treats them like this! Hmm, thats a good way to ____ a customer off! Now we are responsible for the Post Office getting the warranty cards to them as well I guess! That 2% of the PF customers that he mentions is not in his computer just gets to pound sand from the way he acts. I called the Pure Flow office in Missouri back and talked with Diane, who found my info in her computer right away. No questions asked, she was wonderful to work with and I have either a 6 year or unlimited warranty, depending on something. I could care less what it is, I bought the pump about 2.5 years ago so its well within both time periods and covered. She has a replacement pump coming out to me this afternoon and will change it next week once it arrives. Now for the next bit of good news. The system threw a Po216 code on the way home, but considering that the Edge was showing ZERO fuel pressure thats not surprising. Anyone feel that after I put a new raptor in the system that the VP is going to be worth a damm or reliable enough to trust on the road?

After reading a lot of advice on this and other forums, I decided that I needed to buy a fuel pressure gauge. Going on recommendations I’ve received, I ordered an inexpensive Westach gauge. When it arrived, I had a local garage install it. After they finished, I got in to drive the truck back home, a distance of 25 miles. About 7 miles out, the gauge went to zero. I pulled off, shut the engine off, and thought about it a bit. I started the engine back up and the gauge went back to around 11psi idle. It worked all the way home. The next day, when I started it up, the gauge was zero and stayed there. I called up the garage, and they said to bring it in Friday. I called up Geno’s Garage and they said to have the mechanic check all the wiring. OK, I said, and headed off to a town about 50 miles north for some necessary grocery shopping. The gauge read zero all the way up and back, but the engine felt like it normally did. Geno’s Garage got back to me and said that the lift pump itself might be bad. I didn’t think the truck would run without the lift pump running. I took the truck into the garage on Friday. The first thing they did was to put a mechanical fuel pressure gauge to check. Damn, the lift pump wasn’t working at all, so I had to have them replace it with just the standard one. Small town. The garage didn’t know if the lift pump not working would have damaged the fuel pump or not. The diesel fuel tank was from full to 3/4 up and back. I’m content to drive along the winding two lane road around 55mph or so, going through two small towns on the way. I probably drove a distance of 170 miles with the fuel pressure gauge reading zero. Is there a way to test the fuel pump to ascertain if it was damaged or not? I realize that going without the lift pump certainly wasn’t good for it, but our normal camping is often in rather remote areas, far from cell phone towers or anything else. Are there any thoughts out there to estimate the chances that the fuel pump was damaged? Thanks for any and all answers.