I have a 93 Corolla, which runs really fine now. However, the speedometer seems to be showing the wrong speed. It got progressively worse over time, and it got real bad just after I replaced my engine mounts and all 3 belts in my last round of maintenance.
Basically, it is shows a speed of about 20km/h too fast right now. So, when I am going at about 90-100 km/h (rush hour speed), the speedometer shows 110-120 km/h.... which is a bit worrying.
Does anyone know what's the problem? All suggestions appreciated.