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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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post #1 of 7 (permalink) Old 02-06-2013, 09:47 PM Thread Starter
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What is this?

You're looking at the driver's side. What is this tube in the center of the pics? I noticed today that it's a bit oily/wet, more toward the bottom than the top (can't really see in the pics). Issue or not? Thanks for the help.
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93 Ford F250 7.3 IDI
2wd
E4OD Auto
31" bfg all terrains
Just rolled 100k original miles
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post #2 of 7 (permalink) Old 02-06-2013, 09:54 PM
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What is this?

Power steering hose. I can't tell if its the pressure line or return line though.


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1994 F-350 7.3 IDI Turbo, crew cab, E4OD,4:10 L/S, LB, Dually
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post #3 of 7 (permalink) Old 02-06-2013, 10:00 PM
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Looks like it might be a power steering hose. It looks like their is a little oil/fluid on the outside of the pump.

95 F350, 7.3 PSD, CC, ZF5 speed, 4x4, Dually, Autometer EGT, Boost and Engine Temp Gauges, HPOP and Fuel Pressure Gauges, DP and 4 inch exhaust, Tymar Intake, CPR Fuel System, Adrenaline HPOP, Intercooled, IDM Mod, WW2

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post #4 of 7 (permalink) Old 02-07-2013, 11:10 AM
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Looks like the pressure side of power steering. The return side has radiator style hose clamps and it usually comes from the front crossmember where there is a cooling loop.

Alvin Mitchell
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1983 F250 4X4 4.10 gears 4 speed dana 50 center/44 outers Dana 70 rear
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post #5 of 7 (permalink) Old 02-07-2013, 11:53 AM
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With certainty it is the power steering high pressure line, shaft seal may be geting weak on either the steering box or pump, more oil on side wall then on pump points to the box, more on the hose and pump indicates pump.

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post #6 of 7 (permalink) Old 02-07-2013, 12:57 PM Thread Starter
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Thanks y'all. A few times a week I hear a creaking/slipping noise when turning at idle like something isn't getting lubed. The fluid level is good, and was flushed a couple years ago. I might be needing a new pump soon.

93 Ford F250 7.3 IDI
2wd
E4OD Auto
31" bfg all terrains
Just rolled 100k original miles
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post #7 of 7 (permalink) Old 02-07-2013, 04:44 PM
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The pressure lines will start to weep before they fail, the whining noise is common with this type of pump and it may last a long time before going out.

Alvin Mitchell
Pablo Montana
1983 F250 4X4 4.10 gears 4 speed dana 50 center/44 outers Dana 70 rear
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