Hi all, I have a Honda Accord 94 w/ automatic transmission. Recently, the speedometer starts to jump around after continous driving for about 1 hour or so, while within the 1 hour time, it works well. I stop the car and turn off the engin. If I start again just after stopping, the same problem continues. But if I wait for 1-2 hours until the car cools down, speedometer works well again. I am not sure is it the problem of the VSS or speedometer unit? If it is the problem of VSS, autozone sells it for almost 100 bucks. But I searched ebay, it is asked for only ~30 bucks. Is there any difference? Thanks for your help! Liang