This problem started several months ago, truck would cut out while going down the road. I replaced CPS with auto zone sensors several times finally got one from ford and that problem stopped. Then the truck would at times stumble like it was running out of fuel and at times shut down but would crank back with a little cranking. Went out to warm it up one morning and it had Been running about 15 min and it started stumbling and shut down, again it started back up but would run good for a few seconds then it would run real rough like shaking the whole truck for a few seconds, it will go back and forth between running smooth and rough a few times then shut down. I've replaced the CPS again with a ford dealer sensor and replaced the idm with a known good spare I had to rule it out. I checked the fuel pressure at the bowl and it bounces between 15-20 psi at idle. No Cel at any time during this whole ordeal. Fuel tanks are both a 1/4, my wife usually drove this truck and for some reason only wanted to put $10-$15 of fuel in it at a time. I'm thinking I may have a problem with the fuel pickups in the tanks but wanted to throw this out for some ideas. This is my first post on here so bear with me.
The fuel pressure you gave seems a little low to me as well, next time it stumbles and dies, just turn the key off and check to see how much fuel is the fuel housing and if it is low, I would suspect the fuel pump.
Have you ever replaced or had replaced the fuel pump on top end of valley just under the turbo ??
__________________ 1995 PSD F-350 4X4 97 motor installed.
1996 PSD F-350 crew cab 4x4, AB CODE CALIFORNIA TRUCK, 5 speed,CON-O SMFW modified by Southbend Clutch, ORU Reverse Shackle kit, 4:10, u.s. gear chip, IDM MOD BY ME , down pipe, 4 inch straight pipe, boost and EGT gauges,PRO COMP A/T's 305-70's, Bilstein's, ditched the k&n filter for an open element Baldwin PA 2818, kenwood & polk audio sound system.
2002 Excursion PSD 4x4 XLT Premium- BB Turbo , 6.0 IC, 8 inch Sky Jacker lift, FOX shocks with remotes, 35-12.50R17 BFG Muds mounted on 17x10 Boyd Coddington Billet wheels, ORU Frozen rotors, custom hybrid intake, DVD/2 monitors, Billet grill, XM radio, DP Tuner
It hasn't had a chip in years, however I was think the uvch also because in the last three years i've went through 3 idm's. It will be this weekend before I can try anything. On the uvch is there any way to check them? I've looked for burnt pins where they plug in at the valve covers and everything looks good there.
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