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Speedometer sensor removal

November 15, 2015, 05:39:45 pm

I went to remove my electronic  speedometer sensor today. The 2 wires broke and the sensor is stuck in the hole.I am guessing I am somehow going to have to get a screw or something into it to give me something to pull on. Any ideas? The sensor in in the top of the rear trans cover just ahead of the yoke. Does anyone know the part number for a replacement?

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Re: Speedometer sensor removal

Reply #1 – November 20, 2015, 10:40:46 am

The Allison part number is 23013334 check prices on ebay.  I picked up my new one for $60.00 if the sensor was mounted like mine there was one bolt that went through a retaining clip then the sensor was removed by just pulling on it.  It had no threads just slid in and had an O-ring seal.  Not sure if yours is the same.

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Re: Speedometer sensor removal

Reply #2 – November 20, 2015, 10:50:38 am

If the sensor just slides into a hole, and the sensor cannot be clamped on, I would first get a new replacement so I would know what the geometry (dimensions, etc) is. Then I would try to drill a hole in the middle of the sensor--with the appropriate size tap drill. Then carefully  tap the hole--at least 1-1/2 times the tap diameter in depth. Then thread a bolt into the hole. Now you have something you can pull on.

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Re: Speedometer sensor removal

Reply #3 – November 20, 2015, 11:21:59 am

Thanks Yes that is the part number. I found one on Ebay new for $39.95. It should be delivered today. Mine broke and the wires pulled out.I am in Tx now and after I get loaded heading back to Carolina.
 The rear trans bracket is in my way to drill so I'm going to remove it and drill a hole in the sender and put a deck screw or drywall screw in to give me something to pull it out with. All I need is some time!

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Re: Speedometer sensor removal

Reply #4 – November 26, 2015, 09:47:09 am

UPDATE:
I finished the sensor replacement. The old sensor had broken off in the hole.I had to get a right angle drill adaptor and drilled a 1/8 hole in the old piece.Then threaded a deck screw into the hole.Then clamped vice grips to screw shaft and using 2 prybars was able to pull it out of hole. It was a booger to get out.Put new one in greased oring on it before and it went in fine. Speedometer still doing the same thing so it must be in speedo head as well.

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