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inside the CPS hole?

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Old Sep 7, 2010 | 10:56 AM
  #1  
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inside the CPS hole?

Is there a tab on the camshaft or something that the CPS reads?

My truck is still not starting after a week and a half now. I just don't have the time or proper diagnostic tools/abilities to troubleshoot it so I took it to a guy who's had it for nearly a week now. He says he's checked all the fuel, oil, and injection systems and believes them to be good. His feeling is that "the button on the camshaft has fallen off".

Does this sound reasonable? And would it cause my truck to stop?
 
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Old Sep 7, 2010 | 11:01 AM
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CPS reads the slots (holes) on the camshaft gear .. the big one.

 
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Old Sep 7, 2010 | 11:18 AM
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Another pic here ...Name:  Cutaway CPS.jpg
Views: 632
Size:  10.0 KB
 
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Old Sep 7, 2010 | 01:36 PM
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If that came off you would have definitely heard it....
 
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Old Sep 7, 2010 | 01:37 PM
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Rick can you make that pic any bigger?
 
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Old Sep 7, 2010 | 02:25 PM
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Originally Posted by strokin'_tatsch
If that came off you would have definitely heard it....
No doubt huh!
And I guess there are pics. Can't see em on the work computer...
 
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Old Sep 7, 2010 | 02:32 PM
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Imagine this... The gear on your camshaft is about 6" in diameter.. It's pretty dang big around anyways.. The part that the CPS reads off of goes all the way around the outside of the gear and has a bunch of slots in it for the CPS to read. If something that size came off in the front cover you dang sure woulda heard it make a stupid sound when it quit. Are you getting good ICP when you crank it???
 
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Old Sep 7, 2010 | 05:48 PM
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Originally Posted by superduty4x4
Rick can you make that pic any bigger?
I tried , it was blurry ..

Maybe your browser can enlarge it ....
 
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Old Sep 7, 2010 | 07:47 PM
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Any better or do you still want bigger?
 
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Old Sep 7, 2010 | 11:37 PM
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thats much better Chris. Thank you
 
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Old Sep 15, 2010 | 11:07 PM
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I had a similar problem with my 97. No codes, no start. Turned out to be the injection pressure regulator. The plug had bare wires and the regulator had some gunk in it. It was starting hard, idling rough and burning more fuel. Runs like new now.
 
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Old Sep 16, 2010 | 12:05 AM
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hey kelly where is the plug located at? Is it that single wire on the side of the fuel filter?
 
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Old Sep 16, 2010 | 05:58 AM
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Welcome to fte rebel. The ipr is on the back side of the hpop, there's a pic around here somewhere but I'll be darned if I can find it.
 
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Old Sep 16, 2010 | 04:50 PM
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thanks 427 ill have to check that out
 
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Old Sep 16, 2010 | 04:55 PM
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IPR pic ....

Name:  IPR clear Pic.jpg
Views: 1247
Size:  43.3 KB

Name:  IPR AND HPOP.jpg
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Size:  67.6 KB
 
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