Where are the input and out Vehicle Speed Sensors located?

1999 HYUNDAI ELANTRA
79,000 MILES • 2.0L • 4 CYL • 2WD • AUTOMATIC
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RICHKERIN
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I am trying to replace the input and output speed sensors; I have the part but can't find the location of the sensors. A picture or video would help but I'll take any help I can get.
Sep 9, 2023 at 12:04 PM
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STEVE W.
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Both sensors are on the tail of the transmission case. Each has a single bolt that holds it in the case. Removal is simple, remove the bolt, wiggle the sensor until it comes free. Replace with the new one. Snug the bolts back down to 7 lbft. Plug the electrical connector in. Those are not a common failure item on that transmission, Might I ask the reason for replacement?
Sep 10, 2023 at 5:23 AM
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RICHKERIN
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I am getting a check engine code P0501 vss performance out of range intermittently. Could the VSS sensors be bad? The speedometer cable also broke and I can't find a replacement cause they stopped making the part. Could that be the problem does the cable work with the VSS?
Sep 10, 2023 at 7:54 AM
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STEVE W.
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Okay, if the speedometer cable broke that is the issue, there is another speed sensor in the speedometer head as well. The two in the transmission are only used to control shifts with the output speed sensor used as a comparison to the one in the speedometer itself. The VSS out of range would be the code complaining that the one in the dash isn't reading like the one on the transmission. If the housing for the cable is okay, you could look at places that sell universal cables and see if you can make the inner drive cable work. I have never had one out on a Hyundai but many use the same style internal cable so you could get the internal part and adapt it to fit.
Sep 10, 2023 at 10:39 AM
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RICHKERIN
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Thanks, will try that.
Sep 10, 2023 at 10:42 AM
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STEVE W.
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The part # for the OE cable is Hyundai 94240-29030 if you want to look online. The universal ones can be had from places like Oreilys advance and many others. They usually come with a tool to crimp on a drive end, or you can use a hammer and iron or a vice to smash the end into a square if needed.
Sep 10, 2023 at 2:20 PM
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RICHKERIN
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Okay, will look into that, one last question, is this cable missing going to cause problems with my automatic transmission shifting?
Sep 10, 2023 at 3:15 PM
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STEVE W.
  • ASE Certified Mechanic
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It shouldn't. It's supposed to be used more with cruise than transmission controlling.
Sep 10, 2023 at 6:49 PM
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