Starting problems - 1999 f350 7.3 - Ford Powerstroke Diesel Forum
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Old 08-27-2006, 04:04 PM
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Exclamation Starting problems - 1999 f350 7.3

The problem is it won't start.
Everything pointed towards the CPS so I changed it. Still No start.
Read through a few threads.
Checked the Oil level in HP system: 3/4 inch from the top. No Start
Changed Starter and batteries....needed to be done
Changed glow plug relay...no start
Rented an ODBII scanner....no codes
Read a few threads. Tach doesn't move while cranking (bad CPS???
Pulled hair out

Could my truck's PCM be bad?

Any Help

Dont yell but I did give it a shot of starter fluid
It will run on that

It is something in fuel delivery...Im almost sure
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Old 08-27-2006, 04:15 PM
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first of all, i wont yell at ya, but remember for the future that WD-40 is a much safer "starting fluid" for diesels than ether is.....

lets get to the basics though.....the code scanner you rented....do you know if it has the ability to monitor PIDS (perameters....or in other words the actual reading of individual sensors). I would like to know what the ICP, IPR, CMP, etc, etc, readings are during crankiing. This would be the next logical step to take to rule out a possible IPR valve or somethething else with the fuel system or HP oil system that runs the injectors....

A couple other things to bring up though....Have you measured fuel pressure to make sure the fraimrail mounted electric pump is working properly....and have you changed your fuel filters recently. Also, are you running strait #2 diesel or have you played with BIO or WVO......

I want to congraduate you for checking everything you could find info on. You did a fabulous job of checking the common stuff.......Great Job there!!!

I do want to welcome you to the forum and Thank you for becoming a premium member right off the bat.....Thanks buddy!!!
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Old 08-27-2006, 06:23 PM
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the scanner does not monitor anything - all go or nogo

I did change the fuel filter
the fuel[tank] pump appears to work (i can hear it)

I guess Im not familiar with the other
Is that the injector pump itself?

The CPS and tach not registering concerns me greatly
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Old 08-27-2006, 06:28 PM
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the tach registering isnt a foolproof test. Its a good test for general purposes, but nothing that i would put a ton of faith on in your situation.....

The other parts i listed are componants of the High Pressure oil system......i would like to know what thier readings are.....

Also, there is always the possibility you recieved a bad cam sensor.....NEVER assume a brand new part is good......i have been bit by that before. Its unlikely but possible...possible enough that it shouldnt be ruled out..

have you checked the wiring for the cam sensor connector just out of curiosity..
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Old 09-06-2006, 06:51 AM
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Of course thats what it is

No oil pressure.......no start

65psi @ ICP
2200psi @ pump

bad injector o-ring on num 1

But now I can say....I know my truck
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Old 09-06-2006, 04:09 PM
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the injector o ring was leaking down bad enough to cause a no start huh??? that is not very common....Glad you got it fixed though!!!:beer2:
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