Question about Hyundai Santa Fe
Yes it is all related. It sound's like your speed sensor (VVS) has gone bad. There are two of them, one is an in put Velocity sensor and the out is the out put Velocity sensor.
Your going to have to get the Van scanned to find out which on has gone bad. Most of the time it's going to be the out put sensor and it not that hard to replace.
You can do it your self or a transmission shop, as for getting your Van scanned for the codes to let you know which sensor when bad. Auto Zone or Parts source will scan for free and can give you instructions on how to locate and replace the sensor.
Good luck and hope this helps.
Posted on May 04, 2009
There was a recent class action law suit settled with GM for this exact problem. You can google gm speedometer lawsuit and get lots of information. Unforutunately for most people I think the warranty was limited to 7 years and 70,000 miles. Which isn't a lot of miles for most people.
If you car isn't covered by the warranty there is a way to "reset" the speedometer.
You can turn the ignition slowly like you are going to start the engine. There is a very small "dead" space where you will see your guage lights go off.
What you want to do is cycle the ignition switch from off to that dead space. Each time you do it your stuck speedometer will move towards zero about 10 mph. So if its stuck on 40 you will have to cycle it at least 4 times.
At first you will probably actually hit the ignition and the engine will try to start.....just release it and try it again.
I know this because I have a 04 avalanche with 80,0000 miles and it has this problem about twice a month.
Posted on Jul 07, 2009
Its a loose connection on the speedo cable. its a b*tch to get to. I had the same problem on my truck, it would fluctuate in 5th gear on the highway. i spent the money and had a professional do it.
Posted on Aug 09, 2009
Could be a fuse my old sunbird would tell me it was going 60km an hour at a dead stop and when i started moveing it would drop to 0 replaced ALL the fuses and had no more problems
Posted on Aug 18, 2009
The Speedometer head is faulty, replace speedometer head or whole gauge cluster.
Posted on Mar 25, 2010
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