Reduced Engine Power Light w Wrench Showing

[WannaBStroker]

Please help. I have a 2008 King Ranch with the 6.4 obviously and all stock with exception to oversize wheels and tires. 33's on 18" wheels. Never had any issues until now. After a recent visit to dealer for recalls and radiator hose replacement they also installed a new flash update 11b23b. Now my truck goes into reduced engine power mode with a wrench showing on instrument cluster panel. Engine warm, Fluid levels good, did an air filter change and replaced fuel filters as well. Happens after driving 12-15 miles. Truck has 126k miles. I read in previous threads about hyper extended thermostats but that doesnt make sense. Temps and oil pressure good. Doesnt seem to be any issues mechanically. I am lost here as the computer isnt throwin any codes. I would take it to dealer but i am afraid they are just going to spend my money and throw parts at it. Engine is warranted under diesel care but dont cover the qoute unqoute wearing parts. Hope somebody has input here. Thanks

[fast]

wrench= junk trans!

[WannaBStroker]

Originally Posted by fast

wrench= junk trans!

Seems like i would have different warning light, codes thrown and shifting issues but everything is good. I heard it may have something to do with "pcm"power controle module as well and that has everything to do with drive train right?

[WannaBStroker]

OK, Truck at dealer. They pulled a code P00B7. Engine Coolant Flow Low/Performance. They say the thermostats need replacing. WTF. Never had an issue. Sounds like a way around a recall. Lots of guys in every diesel forum around talking about it. Whats next a Exhaust Gas Temperature Sensor? This repair $600 not gauranteed, not covered by Diesel Care warranty. This is crap! Losing faith in my Ford

[lisastrader69]

I had the very same thing happened and it was my EGR was messed up. Ford wanted $3500.00 to fix it...lol

[08KingRanch350]

Mine did it to, replaced thermostats with the 600 dollar punch to the gut (leaving the next day for a 2000 mile trip so I didn't have the time to turn the wrenchs) haven't ,knock on wood, had any problem to date. So in my case it fixed the problem

[srjd]

Don't lose faith in your ford if that's the only problem you have had with that manny miles be happy

[6.4powerstroketech]

it is ur dpfe filter in ur exhaust system the soot plugged it all up u have to get it cleaned or as we do in our shop get a deletion kit we hollow out the filter and put a programmer on it the light goes of gains power and better fuel mileage.

[Fussgus]

Got the same thing going now and the truck is going in on Wednesday. Will let you what BS I find out.

[Fussgus]

Got the truck in and Ford told me it was one of the Thermostats.