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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 02-21-2011, 01:46 PM   #1 (permalink)
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tach sensor location

just bought a 1994 7.3 idi turbo new to diesel. my tach don't work eveything i read said it is the sensor. can any onyone tell where it is located
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Old 02-21-2011, 02:41 PM   #2 (permalink)
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should be right of the oil fill cap its that 2 wire sensor right there in that housing
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Old 02-21-2011, 07:03 PM   #3 (permalink)
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I just want thru the tach thing a few weeks back, before you go buy the sensor at ford that Ben tould you where you can find it, $89.00 at ford, I just got one and it was not that, there is a small square pull out sensor on the driver side fender I would say 2'x2' pull that out take a short wire and jump the thing and check the tack, that sensor is what was bad on mine, it cost $7.00, but you can test to see if it is that.
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Old 05-15-2013, 03:24 AM   #4 (permalink)
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Question

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Originally Posted by buckhunter1 View Post
I just want thru the tach thing a few weeks back, before you go buy the sensor at ford that Ben tould you where you can find it, $89.00 at ford, I just got one and it was not that, there is a small square pull out sensor on the driver side fender I would say 2'x2' pull that out take a short wire and jump the thing and check the tack, that sensor is what was bad on mine, it cost $7.00, but you can test to see if it is that.
Buckhunter; can you please show me what you're talking about? A picture maybe? Thanks
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Old 05-16-2013, 05:11 PM   #5 (permalink)
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Yeah, I'd like to see what your talking about too

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Old 05-16-2013, 10:14 PM   #6 (permalink)
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I think he's talking about fuse #22 under the hood. I read in another thread that a guy was having auto tranny problems related too the tach sensor and that was the fuse. There is also a fuse in the cab that controls the tach.

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Old 05-16-2013, 10:36 PM   #7 (permalink)
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Where in the cab?
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1992 F- 250 ZF 5spd,4wd,7.3 idi, K&N air filter, Holley red electric fuel pump, 3/55 gears, Lund cab visor, Ranchhand headache rack, diamond steel bed rails, American Racing aluminium wheels,gooseneck ball in bed, v-5 hitch,cab lights.Almost done with my conversion, reg cab L-bed to ext cab s-bed lookin good Motor is out of '91 F-Superduty unknown miles ,280,000 on truck. also got a 1999.5 F-250 Superduty,7.3 powerstroke,automatic transmission,xlt lariet,extend cab long bed (big truck), 150,000 miles,v-5 hitch
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Old 05-16-2013, 10:38 PM   #8 (permalink)
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In the fuse box.
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Old 05-16-2013, 10:39 PM   #9 (permalink)
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Sorry, "case" was supposed to be fuse. I'm on a tablet and it predicted that...
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Old 05-16-2013, 10:53 PM   #10 (permalink)
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That's ok, my tach won't work either, I've tried almost everything
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Old 05-17-2013, 12:23 AM   #11 (permalink)
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I'm testing mine tomorrow and if it's bad I'm getting one from a guy for ten bucks. His has bare wires covered in silicone but it still works! He's got an auto so he knows it works. I'm driving a manual and other than the annoying fact that the needle doesn't move I don't need it.
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Old 05-19-2013, 04:38 PM   #12 (permalink)
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NO Broncride 08, it was NOT fuse #22 it was on the left fender back at the firewall, after I spent a ton for a lot of stuff to fix it, someone on here told me what it was, $7.00 fix, its not in the fuse box, it is alone, I say about 2x2 plug in bottom pull out jump with wire and tack will work if that is it, if it works just get the new relay, I do not know how to add a pitcher or I would sorry
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