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Old 10-26-2009, 06:15 AM
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Help! Truck died while driving, won't start now

My husband was driving our 99 F350 dually, six speed when it died while driving. We had this problem before and it was the fuel heater that blew a fuse. We replaced the fuse and unplugged the fuel heater, truck has been running fine since. That was 9 months ago, so we know that's not the problem now. We checked all fuses, changed the oil and fuel filter and changed the cam position sensor out and charged up the batteries real well. Still not running. We also swapped out relays that we know work with possible bad ones. The truck cranks perfect, wait to start light comes on, all gauges are working fine. The truck wants to run, it just won't...Anyone have any other ideas?? Also, we know the fuel pump is working because when hubby changed out the fuel filter he didn't tighten it down enough and on second try of starting it fuel sprayed straight up. How can we check to eliminate fuel system problem and/or electrical problem...Please don't suggest ether because hubby won't do it! Thanks
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Old 10-27-2009, 06:11 PM
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my 6.0 died while driving and wouldnt start back up after changing fuel filters and clearing codes and what not and it ended up being the hpop...
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Old 10-27-2009, 06:15 PM
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I would get it scanned to see if it is building injection control pressure (ICP).
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Old 10-27-2009, 07:28 PM
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cps sensor most likely its on recall if thats the case any ford dealership has to replace it free takes them bout 20 minutes
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Old 10-28-2009, 03:18 AM
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Thanks for the replies. As stated above, I did already change the cps. Also did the ICP. Still nothing. Had a diesel mechanic friend come and put a scanner on it, and it's not pulling any codes. I know it's not the PCM because the wait to start light comes on. We also checked the oil reservoir for the HPOP and it's full, you can see oil about 1/4" down. I know there are a couple of other sensors that could cause this, one of which is a $900 IDM. One other clue we are getting is that usually when the truck won't start, eventually white smoke will come out the tailpipe from unspent fuel, this is not happening this time....so there has to be something somewhere between the fuel filter and the injectors preventing it from firing. We know the fuel pump is working, we can hear it, plus with the filter loosened a tad bit fuel shoots straight out. Hopefully this will give someone other ideas for me?? Thanks for the replies y'all.
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Old 10-28-2009, 06:03 PM
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Did your friend do a buzz test on the injectors?? What was the ICP (psi) while cranking??
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Old 10-28-2009, 06:54 PM
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Yes, he came back with his snap on scanner and did a buzz test. Came up with IDM fault. P1298. He also ran other diagnostics and the only other things that showed was low pressure for the wastegate, which is to be expected with the truck not running and low pressure at the ICP which he said is also not surprising with the truck not running. We went and got an IDM today.....please keep your fingers crossed, I'll be changing out tomorrow.
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Old 10-29-2009, 06:21 PM
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Still not running with the new IDM...thankfully we can return it. Now we are leaning toward the HPOP. Gonna rescan it and check the pressur. Anyone know how hard it is to change out?
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Old 10-29-2009, 06:43 PM
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mine done it over the weekend my IPR valve was bad it was $194 bucks i thought it was pump how much pressure is it making when you are cranking it it has to be at least 400-500 psi to start i also thought it was the cps first replaced it with new one and the new one was bad (found that out after truck was running it started missing then through code ) i went back to old one i bet IPR on back of hpopright of fuel filter
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Old 10-30-2009, 06:59 AM
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Sorry you are having so many problems and no responses. You need to check and see what the pressure is from the HPOP in the heads while turning over. You should be able to check it with the scanner. IIRC it has to be a minimum of 450 PSI to start. If it is not there I would pull the IPR and check it. It could be a bad connection at the plug. A blown o ring on the IPR or could just be a bad IPR. JJ
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