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7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

       
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Old 07-06-2007, 09:52 PM   #1 (permalink)
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Air leak in fuel line

I know air is getting into the system when running on the front tank. I just replaced the front sending unit today and thought maybe pickup in sending unit was problem but now I think not. The lines from the front tank sending unit to the diverter valve are the braided wire with factory clamp end. Any suggestions on what to do to try to isolate leak and what to do to fix. Also any other places air could enter system when running on the front tank only.??
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Old 07-07-2007, 12:42 AM   #2 (permalink)
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Re: Air leak in fuel line

Check the steel line to RH side from the FSValve and the pigtail at the lift pump.

After that check.......
http://www.intellidog.com/dieselmann/idi.htm
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