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-   1994.5 - 1997 7.3L Power Stroke Diesel (http://www.ford-trucks.com/forums/forum170/)
-   -   stubborn 97 (http://www.ford-trucks.com/forums/1320659-stubborn-97-a.html)

Stroked 89 CA 06-17-2014 07:55 PM

stubborn 97
 
hopefully i can get some help here

truck is back on the grind of not starting , been an on going problem , truck starts when it wants to , whether its first start of the day , or after it just drove 100 miles , some days it fires right up and other it keeps cranking with no start , some days when it does start , even at operating temps when i shut it off , let it sit for a minute and it wont start back up just keeps cranking and cranking , im lucky ounce in a while it barley catches and fires , only way to get it to start is with a pinch of ether , i know my gp system is not working properly , but at these temps there not needed anyways , was recently at a local diesel shop and the ford dealer , between the two they told me it has good compression , good fuel pressure and passes a buzz test , dealer said the injectors could be binding up? truck does not miss a beat when running , no cel , everything works as it should , wts light all that stuff works , its got a new motorcraft cps , still wont start with the <acronym title="Injector Pressure Control">icp</acronym> unplugged , just throws a cel , i don't have a way to watch <acronym title="Injection Pressure Regulator">ipr</acronym> cycle and the tin nut is tight ,

codes its throwing are

p0113 - intake air temp circ low input

p0603 - internal ctrl mod KAM error

p0478 - exhaust press ctrl valve high input

p0470 - exhaust back pres sens circ error

- video of what it does

96ford250 06-17-2014 08:42 PM

Sounds like your EBPV is stuck/sticking shut for starters the other codes I'm not so sure.

oldbird1965 06-17-2014 09:07 PM

My guess its your IPR getting old and sticking.

Stroked 89 CA 06-23-2014 12:15 AM

pretty sure my ebpv is open , its unhooked anyways , i am leaning towards the ipr also but i need to get it on a scanner to check duty cycle

anybody else?


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