Yes, pressure needs to be measure between the fuel filter and the injection pump. You are checking supply side pressure to the CP3.
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Yes, pressure needs to be measure between the fuel filter and the injection pump. You are checking supply side pressure to the CP3.
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Cool I always like to get more and more info on these Cummins motors only way to learn is by figuring stuff out and tinkering with stuff and asking questions
2012 Cummins Ram 6.7L MM3 tuner full 5" Flo Pro TBE Exhaust LWBCC 4x4 Mag Hytec Double Deep Transmission Pan , Mag Hytec Rear Diff Cover
Airlift part # 57595 7500lbs airbags ,Nitto Ridge Grapplers 35/12.50/20 on XD 829 Big Hoss ll Satin Black Machined Dark Tint 20 x 9 with + 18 offset rims,MM3 Tuner With full Custom Tunes by Ray at DRD , Autometer A13117 Pillar Pod , Edge 98004 mount adapter , Mag Hytec front diff cover, SuperNova V4 LED Headlight Bulbs
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Tim is referring to the low side. It is very critical to have pressure there. The CP3 depends on the fuel as a lubricant as well as being able to maintain and fulfill the injector demand. I don't see a FASS in your mod list. ******Polaraco stands with arms crossed, stern look, tapping his foot******* LOLOriginally Posted by HKBIGDADDYDIESELDAN
Your talking between the fuel filter and injection pump correct what side low or high or feed or return ?
2003- 3500 RWD Automatic. S & B intake, BD Intercooler, Pusher Air Horn, MM3 Double R Tuning, Turbo Timer, electric Flex-a-lite fans, FASS 95, 50 HP tips, upgrade to 351 turbo, 3.42 gears, Twin air compressors, air bags, Remote dual oil filters, Hellwig sway bar, Front Winch. Home made Fuel Heater, BD Exhaust brake with Torque Lock. Tons of TLC
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So how do I check the pressure between the CP3 and fuel filter? Never done it.
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Correct me if I'm wrong ... and you will ....
but if the lift pump is going out .. it should be showing this at any speed.
He has an issue after he's ran her for a while, like and hour or two at highway speeds.
Jim
2006 ~ 2500HD, Big Horn Edition, 5.9, 4x4, Q/Cab, 48RE, L/B, 3.73, S&B CAI & Snout, ProFlo 5" S/S exhaust, Smarty Touch, Oil ByPass Kit, 60 gal main tank, 110 gallon in-bed tank, XX-Fuel Filter System, Coolant Bypass Kit, Mag-Hytec front & rear end covers and trans pan, 285 x 70 x 17
"Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children’s children what it was once like in the United States, where men 'were' free." ~ Ronald Regan
Not sure, I've checked before and I believe it's the pump that's on the side of the motor where the filter is but I really don't know
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According to the factory service manual for the ram 2003, it's in the tank. Check #14 on the attached page.
I'm far from a professional, but if the lift pump that supplies the fuel is phasing out, it would seem that it would be at any speed, highway or street, loaded or empty. And not fine except at highways speeds after one to two hours of running. Yes, I suggest checking pressure and flow of the lift pump, but also if there is possible restriction of the flow. Anywhere in the system. Then to the mechanical portion of the engine.
Why ... I remember him saying when its running on the street or in the first hour or two on the highway, its running good .... right ?
But I'm just guessing since I don't have it here in front of me. (Hey .. I'm old .. work with this)
(Having issues uploading a pdf, hope this jpeg helps)
Jim
2006 ~ 2500HD, Big Horn Edition, 5.9, 4x4, Q/Cab, 48RE, L/B, 3.73, S&B CAI & Snout, ProFlo 5" S/S exhaust, Smarty Touch, Oil ByPass Kit, 60 gal main tank, 110 gallon in-bed tank, XX-Fuel Filter System, Coolant Bypass Kit, Mag-Hytec front & rear end covers and trans pan, 285 x 70 x 17
"Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children’s children what it was once like in the United States, where men 'were' free." ~ Ronald Regan
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Sorry for being inactive, but found out it was my lift pump on it's way out. Still had the pump on the block. I ordered a fass direct replacement from alligator performance
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According to the factory service manual for the ram 2003, it's in the tank. Check #14 on the attached page.
I'm far from a professional, but if the lift pump that supplies the fuel is phasing out, it would seem that it would be at any speed, highway or street, loaded or empty. And not fine except at highways speeds after one to two hours of running. Yes, I suggest checking pressure and flow of the lift pump, but also if there is possible restriction of the flow. Anywhere in the system. Then to the mechanical portion of the engine.
Why ... I remember him saying when its running on the street or in the first hour or two on the highway, its running good .... right ?
But I'm just guessing since I don't have it here in front of me. (Hey .. I'm old .. work with this
(Having issues uploading a pdf, hope this jpeg helps)
Correction, very late production 03's were shipped in the tank. It could be internal or external. My 03 is a january truck and it was external. The dealers also retrofit the the internals back than at no charge.
2003- 3500 RWD Automatic. S & B intake, BD Intercooler, Pusher Air Horn, MM3 Double R Tuning, Turbo Timer, electric Flex-a-lite fans, FASS 95, 50 HP tips, upgrade to 351 turbo, 3.42 gears, Twin air compressors, air bags, Remote dual oil filters, Hellwig sway bar, Front Winch. Home made Fuel Heater, BD Exhaust brake with Torque Lock. Tons of TLC
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2003- 3500 RWD Automatic. S & B intake, BD Intercooler, Pusher Air Horn, MM3 Double R Tuning, Turbo Timer, electric Flex-a-lite fans, FASS 95, 50 HP tips, upgrade to 351 turbo, 3.42 gears, Twin air compressors, air bags, Remote dual oil filters, Hellwig sway bar, Front Winch. Home made Fuel Heater, BD Exhaust brake with Torque Lock. Tons of TLC
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