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Discussion Starter #1
Ok I have 99 f350 7.3 it will not start hot or cold unless I use starting fluid then it starts but won't idle its had new fuel pump new IRP new fuel bowl I've check all fuses unplugged ICP put 12 volt to IPR to bypass PCM change oil and filter it driving me crazy I can drive to 75 mph as long as I don't want stop
 

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clearly the missing element is fuel if it runs on starting fluid. Do you have any codes? Have you verified you have no block screens in the heads? Have you checked fuel pressure?
 

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It wont drive without fuel...

Check fuel pressure, preferably at the head.

Edit: i just saw that you can drive it at 75 mph. Does the truck smoke at all? What did you use to check codes? Have you done injector buzz test and cyl contribution test?
 

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do a buzz test, cyl contribution test, and check fuel pressure.
 
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