Speedo off a fair bit

[seanuleh]

So i've noticed this problem for almost forever, but the car was my mums and she didn't mind it as she rarely pushes the limits in speed zones anyway and its finally coming into my possession so i want to get it sorted.

At about 40 the speedo reads 35, at 50 it reads 40 and 65 it read 50, but this is only while accelerating, If i coast along and let the speed drop, its as if the pin resists the drop and becomes more accurate, If i take the car upto 70 and drop back down to 50, she becomes alot more accurate being at most 5 or so off. I'm not sure what the problem is, but it seems a bit more intricate to just a calibration problem. The digital speed alert works fine, like it triggers at a pretty accurate speed reading (judging from the gps) but it does not match that on the pin.

Anyone know what the problem might be? Or if it is just a simple recalibration thing, anyone know of a decent place near sydney's eastern suburbs i can take it into?

The car is an auto 95 Lexen, just a toyota rebadged VS.

Thanks

[terrafirma]

sounds like a bad earth in the instrument cluster..head down the wreckers and get a newby...

[hako]

I had this same problem after replacing the odometer cog - this required removing the needle from the dial which took a lot of force, so I figure I probably bent something, however mine was the same as you describe so maybe your problem has the same origin as mine.
Whatever, the cheapest fix is to get another speedo from a wrecker - taking it in to get calibrated will cost big bikkies and is not something that can be done 'on the spot'.