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1994.5 - 1997 7.3L Power Stroke Diesel  

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Old Feb 15, 2017 | 08:50 PM
  #76  
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^^^^ No, the PCM will run without the WTS or CE lights. This exercise is just to determine whether the WTS light is a valid indicator of a PCM/power issue.
 
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Old Feb 17, 2017 | 09:46 AM
  #77  
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ok
i replaced the PCM with one of my other working trucks and still nothing.
just so i can clear my mind of this. is it still possible that the CPS is not rite?
when i broke down i threw in a used one only because i was on the side of the road?
i need some real help. any ideas?
ty
 
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Old Feb 17, 2017 | 09:58 AM
  #78  
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From: Bahstun
did you check the WTS bulb? maybe its blown
 
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Old Feb 17, 2017 | 10:16 AM
  #79  
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Originally Posted by kupiec20
No i am not 100%
But 99%
We asked this before.....for $25 you can get a new one and cancel this out of the possibilities. it could quite possibly be the issue
 
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Old Feb 17, 2017 | 11:02 AM
  #80  
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Originally Posted by PSU4ME
We asked this before.....for $25 you can get a new one and cancel this out of the possibilities. it could quite possibly be the issue
ohhhh CPS you mean...
 
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Old Feb 17, 2017 | 11:02 AM
  #81  
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From: Boston
no a new CPS
 
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Old Feb 17, 2017 | 11:39 AM
  #82  
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From: Bahstun
a new ford CPS, not a generic brand one
 
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Old Feb 17, 2017 | 11:45 AM
  #83  
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You can also test by swapping from your working truck
 
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Old Feb 17, 2017 | 11:52 AM
  #84  
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From: Bahstun
Originally Posted by PSU4ME
You can also test by swapping from your working truck
that's a good idea too
 
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Old Feb 17, 2017 | 03:00 PM
  #85  
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From: DARTMOUTH MA
new CPS same results... no idea what to do now
 
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Old Feb 17, 2017 | 03:03 PM
  #86  
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From: Bahstun
Check the WTS bulb to see if blown


Did you follow the no start flow chart I linked to you prior?


we can guess all we want but tossing parts wont fix it faster
 
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Old Feb 17, 2017 | 03:04 PM
  #87  
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In post 21 you said you had problems before with the truck shutting off, did you do something to fix that or is this the same issue but just not starting back up this time?
 
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Old Feb 17, 2017 | 03:20 PM
  #88  
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Hate throwing guesses at this.

If i'm not allowed to link to another forum, i apologize in advance but just let me know and i won't do it again.

Read here......you may wanna have someone look at it unless you wanna throw more parts at it.

97 7.3L died after hitting a bump in the road - PowerStrokeNation : Ford Powerstroke Diesel Forum

You're comment of it dying before could definitely mean an electrical wiring issue.
 
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Old Feb 17, 2017 | 03:21 PM
  #89  
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From: DARTMOUTH MA
WTS bulb checks out good.

when my truck use to cut out on the highway it would really never shut off.
just complete loss of power then it kick back in. this normally would happen if id hit a slight bump once a month at most.
but if i was driving at low speeds the truck would just shut off all together.
so all i did was unplug the fuel bowl heater wire. it may have happend again once or twice in a 6 month period.
trucks been running fine up until hitting that massive pot hole.
ill have to look at the chart again. I followed it to a dead end.
thanks guys. i really need this fixed. only because its my wifes truck!
i broke it!!
 
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Old Feb 17, 2017 | 03:46 PM
  #90  
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I would say there is a pretty good chance the chip was loose before so hitting bumps and stuff may have been part of your issues before. A loose chip will cause stalling or shutting off.

However, if you're still not getting power to fuse number 9 and 22, you need to diagnose that first. No matter what potential other issue there may be, it will not start without power to fuse 9 and 22.

I don't know the wiring off hand but you may want to check for chafed or broken wiring and make sure you are getting power to those fuses.
 
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