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Old Nov 23, 2011 | 05:42 PM
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arkredneck
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I'm stumped
My truck won't start and im stumped
No blown fuses
Wait to start light works
Changed idm
Changed cps with a working one from a running truck
Batteries are good
Glow plugs work
took chip out

But the tach does not move even with changing idm and cps anyone got any ideas?
 
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Old Nov 23, 2011 | 05:51 PM
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Did you multi-meter the fuses for continuity? I've had several "blow" but not obviously at all. HPOP res and fuel bowl full?
 
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Old Nov 23, 2011 | 06:38 PM
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Hpop is full fuel bowl is full all fuses ohm out ipr is plugged in
The tach does not move when cranking wait to start light works and CPs is good
 
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Old Nov 23, 2011 | 08:20 PM
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You checked the fuses under the hood too?
 
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Old Nov 23, 2011 | 08:44 PM
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IPR could be stuck, happened to me. But, then again, that doesn't have any thing to do with the tach not moving? Is the CPS seated in all the way and the wires and plug OK?
 
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Old Nov 23, 2011 | 08:45 PM
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Lightbulb
I dont know what to add to help you. You dont have the 10K mod, right?
Wiggle the harnesses. is tight the IPR nut?.
Good luck.

 
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Old Nov 23, 2011 | 08:45 PM
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All fuses under hood are good I'm thinking a bad PCM when chip is plugged in it won't light up
 
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Old Nov 23, 2011 | 09:07 PM
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You probably have an issue with the cps connector. the contacts can get loose. Take the connector off and see if the contacts are loose.
 
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Old Nov 23, 2011 | 09:33 PM
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Originally Posted by arkredneck
All fuses under hood are good I'm thinking a bad PCM when chip is plugged in it won't light up
Umm, does it "light up " without the chip?...
 
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Old Nov 24, 2011 | 06:59 AM
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The wait to start light always lights up
The chip does not light up when installed
I'll check the cps wiring today
 
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Old Nov 24, 2011 | 07:37 PM
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An update the CEL lights up when cranking and from what I read PCM rarely fail
 
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Old Nov 24, 2011 | 09:25 PM
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I would have to check it for sure but doesn't the check engine light illuminate when you are cranking?
 
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Old Nov 24, 2011 | 11:23 PM
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the cel will light when cranking if the pcm is not receiving a signal from the cps if i am right been a long time since i have had a crank no start without a crank signal. i would check all connectors and ohm between the cps connector and pcm also check for shorts or opens in the wires
 
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Old Nov 25, 2011 | 12:09 PM
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Well I changed the PCM with a good one and still no start or tach movement
Anyone know where to get a PCM and CPS wiring diagram?
 
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Old Nov 25, 2011 | 04:04 PM
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It started !!!! I really don't know what fixed it but after the PCM change the battery's was a little weak and it didn't crank good so I charged them and now it runs so glad I got a parts truck
 
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