Jerry, Drive to a good shop. So many things can cause reduced power light unfortunately. The first step would be to get the truck hooked up to a scanner/computer and have the computer scanned for trouble codes. One thing that you could try is to drain the water from the water separator that is mounted on the frame under drivers front door. If the PCM picks up on water, power is reduced until water is removed/drained. It could be an exhaust sensor that is reading faulty. Unfortunately from here its impossible to tell you exactly what the fault is because there are just so many engine sensor inputs that could cause your problem. Check the attached links, forums,instruction and guides, Good luck
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Regen / Reduced Engine Power Light - Ford Truck Enthusiasts Forums
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May 31, 2012 - Regen / Reduced Engine Power Light 6.4L Power Stroke Diesel. ...6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and ... Shut off truck for 5 min... turn back on. ..... 2010 6.4 never ending regen, Countryboys6.4, Super Duty & Heavy Duty, 2, 12-21-2013 12:21 AM.
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Reduced Engine Power Light w Wrench Showing - Ford Powerstr
SOURCE: Shut 05 Ford f350 diesel off wont start
when you get a code the PCM will keep that code and till it get easased. you need a scaner or disconect your battery for 1h. this should clear your codes. when the battery is disconected don't sit in your can. the air bags may deploy if you hit the steering collem or a sensor to hard. just let it sit. reatach your battery then try to start your truck. if the codes are still pressent you make need let the car sit for longer or bit the big one and get the shop to do it.
SOURCE: Shut 05 Ford f350 diesel off wont start
dies the truck restart once it cools off? it is very common for th 6.0 to have high pressure oil issues on a hot soak. they will run till the cows come home but once shut off they can not build up enough pressure by cranking speed alone to start truck until it cools down and the seals become rigid enough to bridge the gaps they are sealing in the first please. if this is the case. it may be the STC fitting ojn the back of the high pressure oil pump (intake and turbos must be removed to check) or possibly the branch tube o rings have worn. the branch tubes are located under the valve covers and supply the fuel injectors the oil they need to perform their "power stroke"...
SOURCE: Engine shut down while driving, now it won't start.
Check your oil level. If it is ok then a computer diagnostic scan should be done to have all the engine sensors tested and checked.
SOURCE: i have a 2005 ford f350 diesel that won't
would hav the fuel injection pump inspected-its located in engine area n is really important-think u can run some type of computer scan also-ask discount or zone
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