HELLLLPPPPP! 2003 7.3LReplaced ICP and IPR still rough and no power - Ford Powerstroke Diesel Forum
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Old 09-16-2013, 03:50 PM
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HELLLLPPPPP! 2003 7.3LReplaced ICP and IPR still rough and no power

Alright I have a 2003 250 SD 7.3L PSD. All the sudden started it up Sunday and runs rough. No pre-cursor warnings nothing. Drove fine earlier in the day. Temps are are in the 80's. You Put it in drive and barely goes with accelerator to the floor. However, starts up easily and immediately goes rough. Does not die when accelerating all the way to the floor, but like I said barely makes up driveway.

I replaced the ICP and IPR together and EBPS. Check engine light is on but no codes are read. WHat else could it be? Please don't say the HPOP. What about the sensor on the HPOP on top, could that do it?

Ford replaced all the injectors 14K miles ago and she has run like a champ until Sunday afternoon. Its my only vehicle to get to work. Need some advice quick.

THANK YOU
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Old 09-17-2013, 05:51 AM
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WOW!!! Are you doing this ALL WRONG...

You have an SES light ON, you connect your cheap scanner to our Non-Cheap-Scanner-Readable truck. It says "No Codes Found" (because it's not capable of reading) and you go to the store and spend Hundreds Of Dollars of sensors you don't need?

Classic mistake, and All Wrong

First, for the price of those parts you could have (almost) purchased and AutoEnginuity that has the Library of Diesel, and Ford specific, codes to actually follow the PCMs call on what's bad.

Next, and now that you've eliminated the HiPres oil system, I'd go to the UVCH connectors (at least it's not going to cost you anything). If you had a good scanner, you could perform a Buzz Test to allow the IDM to diagnose the electrical side of the injection system. BUT, have a look at the UVCH plugs (you could also have a "wet" IDM or other problems) as they are a common problem.

Start it, let it run for a min, go feel the exhaust manifolds for heat and compare them.

Have a look at this vid ->

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