Speedometer only moves 0-30mph max ??

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May 1, 2014 | 10:15 PM

Sailor Jay

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Joined: May 2014

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Speedometer only moves 0-30mph max ??

Im new to this Forum but belong to other forums and have searched for previous posts on my speedo problem and can not find an answer here.

Just bought an 2000 V10 4x4 excursion last week. The speedometer will not move past 30 mph even at 60 mph. Speedo bounces a little also. Where do I start to look to fix this issue??

I should have test drove it on the freeway instead of just around the block, argh.
Guess I was still in shock when the guy sold it to me for $3000?

Any help is greatly appreciated, trying to get the X reliable for the wife to drive.

Thanks

May 21, 2014 | 04:14 PM

justonv

Senior User

Joined: May 2014

Posts: 133

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From: Southern NM

Got the same problem, lol. 2000 Ex 4x4 6.8. It was reading up to about 42 mph, seemed fairly accurately, but wouldn't move past that point. Replaced speed sensor in rear axle while changing diff oil, now it reads to 55 and then stops moving. Wife was driving home, said it read 55, but I was behind her in her car doing 65-70 to keep up. Any ideas?

May 21, 2014 | 05:07 PM

Vwags

Elder User

Joined: May 2014

Posts: 547

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From: Southern California

Do you have any tool that will plug into the OBD port and read vehicle speed from the sensor not GPS (Torque, Scan Gauge etc)? It would be an easy check to see if the speed sensor is sending a signal. My guess is that it is and it is probably in the cluster itself but first thing is to check output from the sensor.

May 23, 2014 | 05:49 PM

justonv

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Joined: May 2014

Posts: 133

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From: Southern NM

Took mine for about a 100 mile round trip today (used GPS for speedo) and it reads accurately up to about 42, same as before, but when you are running 70-75 it will try and jump up around 50-55 range. I don't have any kind of tool for checking the sensor like suggested. Maybe we can figure out the OP and my speedo problems between all of us, lol.

May 24, 2014 | 08:31 AM

Apocalypse

Lead Driver

Joined: Nov 2012

Posts: 8,304

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From: Salem, VA

I had this issue with my 79 Datsun 620 (totally not the same) but I just used an old Garmin for a few years... worth the money until you get it figured out

May 24, 2014 | 09:53 AM

justonv

Senior User

Joined: May 2014

Posts: 133

Likes: 1

From: Southern NM

Yeah, the speedometer isn't such a huge deal for me as long as I have the GPS, but my cruise control isn't working, and I suspect they are related. The cruise is nice to have on my 13hr trip back home twice a year, lol.