Tried died in regen, now wont start??

[ArmstrongPerformance]

I got a truck that was running down the highway with the cruise set pulling a 30ft trailer and all of a sudden his display says, "reduced power cleaning DPF" then the temp gauge pegs and lowers then pegs again and lowers. Then the truck died and he came to a stop. It keeps throwing "Turbocharger A Performance", "EGR valve stuck", and "ICP low while cranking" codes. Anybody have this problem or have an idea of what it could be?

I am going to install a DPF delete and SCT today to see if it fixes the problem.

Yesterday I removed the DPF and after some cranking the truck will start and run rough for a few seconds then die, and not restart. I would think a clogged DPF, but I am no 6.4 expert.

The truck is a 08 6.4 F450 with 130,000 miles, new filters and DPF sensors, just got back from the dealer a day ago.

Thanks, Bodie

[ArmstrongPerformance]

I finished the DPF delete and tuner and it started and ran for about 10 seconds the died again. It still wont start, and the livewire monitor says it is not building rail pressure. It doesnt throw any codes, so I guess it is the pump or an injector. How hard is it to replace these? Does the cab have to come off?

[greasltn]

You can replace either with the cab on. Before you start tearing into the truck, have you checked the pressure on the fuel supply? There is a schraeder valve on the fuel cooler to check it with, it should be around 15 psi. If you don't have pressure before the HPFP you can't build up rail pressure. Always start with the easy stuff first. Could be supply pump, fuel filters, or cracked line. All are easier to get to than the HPFP, or injectors.

[ArmstrongPerformance]

Fuel pressure was one of the first things I checked, it has 15psi. All the filters are brand new, and no leaks whatsoever. The more I see, the more it seems like a bad pump, when it runs it builds about 45-50 asking for 70, then drops and then shoots up then dies. It is very erratic.

[elibenson]

Sounds like a high pressure pump to me. That's what mine was doing.

[GatorWerner]

Go back and check all the electrical connections that may have been disconnected while it was at the dealership. I had a simmilar problem and come to find out after hours and days of troubleshooting it was a connector that was not all the way in and secure.

[ArmstrongPerformance]

The guy is giving up, he said he is just going to let Ford have it...

[GatorWerner]

Sounds like he will be paying a lot of money and may or may not get it fixed. Very similar issues to mine. Found that the Driver side electrical connector to the valve cover harness was loose. Reseated the connector, reset the computer for good measure; NO further issues been 3 months now. There are 480 plus sensors on these trucks if something is failing it will tell you unless it can't talk to the computer. The erratic part is what finally tripped the file in the troubleshooting portion of my brain. Hope it works out well and he gets by with having to pay little to no money. I would really like to hear what fixes it.

[ArmstrongPerformance]

He is letting the dealership have the truck, not to work on but to keep. He is tired of putting money in it. I am pretty certain it is the pump though.