Fuel Boss Problem

patchdiesel · 07-03-2009, 10:34 PM

I have a 2001 Dodge cummins running a Fuel Boss Mechanical Lift Pump. The problem is that when the truck is idling the fuel pressure tanks and the trucks starts to chug, but when I increase the RPM's the pressure comes up. Driving it the fuel pressure stays around 15psi.

I dont think its the pump the only thing i can think of is that a pressure check valve after the pump is stuck open so that at idle pressure cant build up.

What do you think could be the problem?

__________________
2001 Dodge 2500 24v Cummins Extended Cab 4x4 Long Box. 6 Speed. Quadzilla Adrenaline

, Fuel Boss Mechanical Lift Pump, Gauges ( Boost, Fuel Pressure, Pre and post EGT), 4 in Flowmaster Exhaust. And of course the BFAF (Big F*&%ing Air Filter). 285/75/R16

**Gypsyman** · 07-04-2009, 02:21 PM

Sounds like the bypass may have a small piece of debris hanging it open. Pull the bypass, disassemble, clean and reinstall.

I have my phone with me over the holiday. Please feel free to give me a call.

Richard
509-993-4923

__________________
'08 Ram 3500, QC, DRW, 4x4, 6.7L, 68RFE, Laramie ~ H&S XRT, Edge Race J/A, B&G "Modified" TCM, Goerend Twin Disc, X-Monitor, ARP 625's at 160, GDP MODS: Air-Boss 67 Grid Delete, Arctic-Heat Grid Reloc Kit, Pro-Gate 38 (open dump), Full Flow EGR/Cooler Delete, Maximizer Big Line Kit, Double-X Ladder Bars, High Output In-Tank Pump Mod in the works...

Richard @ GDP
509-993-4923
Glacier Diesel Power.com

Last edited by Gypsyman : 07-05-2009 at 04:26 PM.

07-03-2009, 10:34 PM	#1 (permalink)
patchdiesel Cummins Fan Join Date: Jan 2009 Location: Alberta Posts: 57 Thanks: 0 Thanked 2 Times in 2 Posts patchdiesel's Truck Pics	Fuel Boss Problem I have a 2001 Dodge cummins running a Fuel Boss Mechanical Lift Pump. The problem is that when the truck is idling the fuel pressure tanks and the trucks starts to chug, but when I increase the RPM's the pressure comes up. Driving it the fuel pressure stays around 15psi. I dont think its the pump the only thing i can think of is that a pressure check valve after the pump is stuck open so that at idle pressure cant build up. What do you think could be the problem? __________________ 2001 Dodge 2500 24v Cummins Extended Cab 4x4 Long Box. 6 Speed. Quadzilla Adrenaline , Fuel Boss Mechanical Lift Pump, Gauges ( Boost, Fuel Pressure, Pre and post EGT), 4 in Flowmaster Exhaust. And of course the BFAF (Big F*&%ing Air Filter). 285/75/R16

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07-04-2009, 02:21 PM	#2 (permalink)
Gypsyman Glacier Diesel Power Join Date: Dec 2005 Location: Spokane, WA Posts: 509 Thanks: 37 Thanked 46 Times in 40 Posts Gypsyman's Truck Pics	Sounds like the bypass may have a small piece of debris hanging it open. Pull the bypass, disassemble, clean and reinstall. I have my phone with me over the holiday. Please feel free to give me a call. Richard 509-993-4923 __________________ '08 Ram 3500, QC, DRW, 4x4, 6.7L, 68RFE, Laramie ~ H&S XRT, Edge Race J/A, B&G "Modified" TCM, Goerend Twin Disc, X-Monitor, ARP 625's at 160, GDP MODS: Air-Boss 67 Grid Delete, Arctic-Heat Grid Reloc Kit, Pro-Gate 38 (open dump), Full Flow EGR/Cooler Delete, Maximizer Big Line Kit, Double-X Ladder Bars, High Output In-Tank Pump Mod in the works... Richard @ GDP 509-993-4923 Glacier Diesel Power.com Last edited by Gypsyman : 07-05-2009 at 04:26 PM.