Injection Pump help - Ford Powerstroke Diesel Forum
7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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Old 03-25-2011, 01:11 PM
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Injection Pump help

how can i determine the condition of my inection pump on my '94 7.3L IDI factory turbo? is there any way of telling if it is the orginal or a reman?

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Old 03-25-2011, 01:31 PM
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Usually rebuilt pumps will have paint on some of the bolts on the pump. So they can tell if you have been into the pump if something went wrong.
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Old 03-25-2011, 02:08 PM
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My pump does not have any bolts w/ paint on them. almost over night my MPG has gone from about 15-16 to less than 10. could this be from a bad IP? My tranny is shifting kind of late and i checked the TPS and it was good, just wondering if a worn IP could cause the TPS to give a good voltage reading but give the tranny the worng signals since the TPS is on the side of the IP. my engine has 200,000 miles on it and i am 3rd owner so no idea of IP history. i just replaced my injectors and i still get quite a bit of white smoke @ start up no-matter what engine temp, could this be worn IP?

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Old 03-25-2011, 03:13 PM
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I dont see how all of a sudden the pump is worn out. Maybe the injector pump timing is off? The mounting bolts might have came loose? Just giving some ideas.
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Old 03-25-2011, 04:09 PM
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I have the motor manual for my engine and it tells that there is a metal badge on the turbos with info about the turbo and the manual says that the original turbo as a badge that is a certain color and the reman turbos have a different color so you can tell whether or not you have a original or reman. there is a badge on the side of the IP and i was wondering if that has the same type thing as the trubo badge for identification of original vs. reman? can the IP be tested anyway kind of like pop testing injectors. how do i go about adjusting the timing and which direction do u think i should go with the timing?

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