Runs when I plug in, doesn't run when I don't.. - Ford Powerstroke Diesel Forum
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Old 03-16-2014, 05:10 PM
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Runs when I plug in, doesn't run when I don't..

Okay so it will start right up if it is plugged in but if its not it wont even try to start. Completely clueless. I have checked the gpr and glow plugs all of the harness and everything. The glowplugs DO turn on while in the cylinder when i turn the key. I have put a new starter on it and the batteries are fully charged. I put a new EOT Sensor and a new ICP. What do I do next?
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Old 03-16-2014, 05:14 PM
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also When cranking the tach moves and smoke comes out of the exhaust.
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Old 03-16-2014, 05:27 PM
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How are you checking the GPR and GPs? And what oil are you running?
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Old 03-16-2014, 06:38 PM
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x2 with Rammstein
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Old 03-17-2014, 02:15 AM
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i have checked the resistance from the gpr and the glowplugs. i have also checked the voltage coming out of the gpr when I turn the key. I have checked and made sure power is also going to the valve covers and they all have 12 volts. Im running rotella T. I had been reasearching and found this article that explains my symptoms and I think could be it. Would you agree? http://swampsdiesel.com/files/7.3LIn...Diagnostic.pdf
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Old 03-17-2014, 01:47 PM
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Quote:
Originally Posted by Axlesteel View Post
i have checked the resistance from the gpr and the glowplugs. i have also checked the voltage coming out of the gpr when I turn the key. I have checked and made sure power is also going to the valve covers and they all have 12 volts. Im running rotella T. I had been reasearching and found this article that explains my symptoms and I think could be it. Would you agree? http://swampsdiesel.com/files/7.3LIn...Diagnostic.pdf
Read this to compare how you tested. How you explained it seem incorrect but i may just read it differently than you meant

Troubleshooting GPR & GP's

Your oil may be your problem. 15w-40 is way to thick below freezing temps that it wont flow enough to start the truck unless the truck is warmed up(i.e oil is thinner)

I wouldnt jump to the injectors just yet.
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Old 03-17-2014, 04:47 PM
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Quote:
Originally Posted by Rammstein1224 View Post
Read this to compare how you tested. How you explained it seem incorrect but i may just read it differently than you meant

Troubleshooting GPR & GP's

Your oil may be your problem. 15w-40 is way to thick below freezing temps that it wont flow enough to start the truck unless the truck is warmed up(i.e oil is thinner)

I wouldnt jump to the injectors just yet.
Yes I double checked and have checked them correctly. What oil would you use when its Averaging 22 degrees?
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Old 03-17-2014, 04:56 PM
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I am here in southern Michigan and the day temp will get up to 50 and the truck will still not start unless plugged in.
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Old 03-30-2014, 04:56 PM
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Okay quys thought i should get back and show the solution. I had got some baby swamp 150/146 injectors and swapped them with my 230,000 mile ones. Well shell fire right up now. And Im lovin the new injectors btw!!
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