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  • #1

    Fuel Pressure / Green Light Issues

    Two weeks ago my Green Light would stay on in the auto position, at cold start, at shut down and purge...it would not go off. I talked to John at DFA and he sent me a new Pressure Switch. I replaced the pressure switch and when the truck got to temp. the green light would come on. When I turned the key off the green light would turn off and the system would purge. It worked for one day then the Green Light would not come on when the truck reached temp. If you switched it on manual the Green Light would come on.

    I talked with John again and he suggested turning the Pressure Regulator colckwise a 1/4 turn. I did and the Green Light would not come on when the truck reached temp.

    I set the Fuel Pressure Regulator as Patrick suggested in the "Quick Help" thread. I spoke with Clay who suggested reading Marv's post on Pressure Issues so I did. Based on Marv's pressure issues I have changed the Donaldson Filter. Still no green light.

    So here i am...I have a new Pressure Switch. I have the Fuel Pressure Regulator set at " all the way out then 3 turns in" or clockwise. I have a new Donaldson Filter installed and no Green light when it gets to temp.

    I pulled the fuse panel cover to look at the timer cards. When the truck is up to Temp both red LED's are lit. When you turn the truck off one of the LED's turns off in 10-12 seconds and the other in a minute. So they seem to be working fine.

    What are my next steps? If I have the truck on manual is it buring vegi at this point? Any suggestions would be appreciated.

    Marty
    Last edited by triplemoutdoors; 10-24-2008, 08:34 PM.
    2000 F250 7.3L
    Vegistroke installed July 12, 2008
    Tags: None
  • #2
    Pre-Filter checked too

    I just checked the pre-filter and it is clean. I run new vegi oil and I pre-filter to 1 micron prior to filling the tank so I expected it to be clean. What should I do next?
    2000 F250 7.3L
    Vegistroke installed July 12, 2008

    Comment

    • #3
      one more thing

      I tried to put a tire pressure guage on the schrader valve and could not get a reading because it would hit the cab of the truck and it would not fit any other way. I may have to try to find a smaller guage that reads up to 75 psi.
      2000 F250 7.3L
      Vegistroke installed July 12, 2008

      Comment

      • #4
        Marty, I know you gave it a shot, but you probably really need to try and get a pressure reading on that schrader valve. Mine is a pain to do as well, but if I hold the gauge at just the right angle, I can clear the cab and the running boards.

        I use just your standard heavy truck/RV air pressure gauge from Autozone by the way.

        Once you verify your pressure is good (around 75-80psi), I'd start checking some electrical connections. I'd also pull the regulator out and blow it out with compressed air. Put it back in and double check the setting on more time.

        There is a way to check the operation of that switch, but I can' remember it off the top of my head. Heck, now that I think of it, you might have told me how before. I know it's on here, but I'd have to search for it. A quick call to Jason or James would probably get that for you.

        As a last resort, I'd put another new filter on it just to see what it does. As Clay told me, fill the current one up with oil so it will stay good. See what it does with another new filter. I'm convinced that it's possible for you to get a bum one since my last one was apparently just that.

        Let us know how it goes.

        Good luck!
        Greasin & Grinin
        Vegi oil powered since Aug 08
        2006 F-250 PSD - CC, Lariat, 4X4 - Vegistroke converted 1/27/13!!
        2008 F-250 PSD - CC, Lariat, 4X4 - Sold
        2005 F-250 PSD - CC, Lariat, 4X4 - Sold

        Comment

        • #5
          Been there done that.Hook pump(FASS) up to 12-13.8 Volts,with multimeter,"spin" pump by putting it in manual mode(at operating temps ofcourse)if it doesn't move you got WVO in your pump"Brushes".In may I had similar scenario,chased it for 2 weeks,ending up "dead Spots" on electrical connection in pump assembly.Ask Jason if this is a viable conclusion for this situation,If nothing is showing up as a solution, I would look at the pump housing for signs of WVO infiltration.Check Back threads. I think i discussed this with Marv about a month back......................greasy
          2000 7.3X V3 So much fun,so little time,Support small Oil,burn WVO,Free and greasy down the road I go!!!!!!!!!!completely self sufficient and proud of it. (Wood furnace.....X.......solar pontoon....solarsheat twins this summer.....I don't Know much.......I'm just a hillbilly with too many guns..............

          Comment

          • #6
            Also check to see if you have power going to the pump, you can do this in manual mode. If not, check the fuse panel on the v3 controller. If you have the 12v pump the fuse should be 15a, if you have the 24v pump the fuse should be 25a. If this fuse is blown the rest of the system will work, but the pump will not come on therefore no green lite.
            '01 F350, lariat LE, cc, lb, drw, TSP 6pos. chip w/ swamps ss tunes, FF stage 1.5, MBRP 4" turbo back, cooling mist water injection.

            Comment

            • #7
              Originally posted by Marv View Post
              I'd also pull the regulator out and blow it out with compressed air. Put it back in and double check the setting on more time.
              Good luck!
              I pulled out the pressure regulator and blew it out with compressed air. I also reset it just to make sure. I will leave the house here in a few minutes to get it up to temp. and the try getting the pressure one more time.

              I will also check pump per greasyx instruction when I get back.

              I need the V3 to work because I am making a 400 mile trip starting a 9am this morning. Don't want to run Diesel!
              Last edited by triplemoutdoors; 10-25-2008, 05:51 AM.
              2000 F250 7.3L
              Vegistroke installed July 12, 2008

              Comment

              • #8
                Originally posted by greasedltn View Post
                Also check to see if you have power going to the pump, you can do this in manual mode. If not, check the fuse panel on the v3 controller. If you have the 12v pump the fuse should be 15a, if you have the 24v pump the fuse should be 25a. If this fuse is blown the rest of the system will work, but the pump will not come on therefore no green lite.
                I checked all of the fuses on the timer cards and they were fine. Does the truck have to be at temp before you put in manual mode? I will be leaving soon to get the truck up to temp if so.
                2000 F250 7.3L
                Vegistroke installed July 12, 2008

                Comment

                • #9
                  Don't feel lonesome I'm having similar issues with mine.

                  On your trip you could do this, after the truck is warmed up put the V3 in manual mode and then pull the fuse on the diesel pump you will then be running on staight veggie on the trip. remmember though you don't have the diesel for backup if you filter plugs.
                  Reinstall the diesel pump fuse and purge if your going to let the truck cool down for any length of time.

                  Good Luck
                  95 F250XL PSD SuperCab BTS auto , Gearhead Tuned, Vegistroke V3 , Tymar Intake, Stage 1's ADRENALINE HPOP. Absolute CF
                  Early 99 XLT SuperCab Auto, MBRP 4" Exhaust, DIY Tymar, Autometer Gauges.

                  Comment

                  • #10
                    Pre-pump screen/filter clean??
                    2001 F350 XLT 4x4, dually flatbed. 6637 air filter, single-shot injectors, straight-piped, BTS tunes, 200 gal main VO tank - 180k greasy miles
                    2000 Excursion Limited 4x4. V3, AIS intake, BTS trans & tunes - 120k VO miles
                    veggiegarage.com authorized installer

                    RIP X & Toyhauler - you served us well.

                    Comment

                    • #11
                      Ok Vegi Dr's

                      I have power to the vegi pump about 13 volts. I can not tell if the pump is running by putting my hands on it.

                      Marv - I got the pressure guage on the schrager and it is at 80psi
                      2000 F250 7.3L
                      Vegistroke installed July 12, 2008

                      Comment

                      • #12
                        Originally posted by skyskijason View Post
                        Pre-pump screen/filter clean??
                        yes sir...it cleaned checked it this morning.
                        2000 F250 7.3L
                        Vegistroke installed July 12, 2008

                        Comment

                        • #13
                          Originally posted by Longstroke View Post
                          Don't feel lonesome I'm having similar issues with mine.

                          On your trip you could do this, after the truck is warmed up put the V3 in manual mode and then pull the fuse on the diesel pump you will then be running on staight veggie on the trip. remmember though you don't have the diesel for backup if you filter plugs.
                          Reinstall the diesel pump fuse and purge if your going to let the truck cool down for any length of time.

                          Good Luck
                          do you know the location of the fuse? I'll try that.
                          2000 F250 7.3L
                          Vegistroke installed July 12, 2008

                          Comment

                          • #14
                            Not sure on your model but it should be in the distibution box under the hood I would think.
                            95 F250XL PSD SuperCab BTS auto , Gearhead Tuned, Vegistroke V3 , Tymar Intake, Stage 1's ADRENALINE HPOP. Absolute CF
                            Early 99 XLT SuperCab Auto, MBRP 4" Exhaust, DIY Tymar, Autometer Gauges.

                            Comment

                            • #15
                              Originally posted by triplemoutdoors View Post
                              Ok Vegi Dr's

                              I have power to the vegi pump about 13 volts. I can not tell if the pump is running by putting my hands on it.

                              Marv - I got the pressure guage on the schrager and it is at 80psi
                              Triple,
                              Try this to tell if your pump is actually running: Make sure your system is up to temp. Disconnect the power plug at the pump. Put your hand on the pump. If you have a helper, have them plug the pump in while you have your hand on the pump. You will be able to feel the difference if the pump begins working as it is plugged in. This works better than just putting your hand on the pump to see if you feel the vibration. The change from not running to running is very definite. - Patrick

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