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1994.5 - 1997 7.3L Power Stroke Diesel  

engine shuts off random

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Old Jul 24, 2012 | 09:39 AM
  #1  
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engine shuts off random

For a while it just shuts off, no symptoms.
Usually it starts right back up.
Now it dies and will not start, maybe lack of fuel?
 
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Old Jul 24, 2012 | 10:58 AM
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Sounds like a CPS
 
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Old Jul 24, 2012 | 11:01 AM
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i just put one on in spring, could it have failed again?
 
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Old Jul 24, 2012 | 11:03 AM
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Yep. Where did you get it?
 
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Old Jul 24, 2012 | 11:07 AM
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o'reilly auto parts
 
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Old Jul 24, 2012 | 11:43 AM
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Originally Posted by jle70
o'reilly auto parts
Get a ford CPS....

Richard
 
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Old Jul 24, 2012 | 11:52 AM
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Yep go to Ford or International and get one
 
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Old Jul 24, 2012 | 12:09 PM
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ok. thanks. I just did not see how it could fail so soon, but it makes sense.
 
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Old Jul 24, 2012 | 12:40 PM
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just went out and it started right up. it sat for about 3hrs.
 
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Old Jul 24, 2012 | 02:08 PM
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Still probably the cps..
 
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Old Jul 24, 2012 | 07:50 PM
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When it fails, do you see the tach moving when you try to start it?

Hot CPS failure is not uncommon, on any vehicle so equipped. The CPS on the old Saturns is a _crank_ position sensor, and is famous for causing a stall, no-start when hot. Cool down, sensor returns to normal op, car starts, runs until a certain temp when the CPS fails again. Rinse, repeat.
 
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Old Aug 16, 2012 | 06:16 PM
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Sorry did I did not reply sooner.
It was the CPS. I did have Tach movement when cranking over, so it was confusing on what caused problem.
For future reads by "searches".
1. engine shutting off, random, was able to restart
2. tach still showed rpms during cranking
3. towards the end, engine would only run for 10-15 min, then after cooling back down, would restart.
 
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