Speedometer Test
Ensure tire pressure is at proper level. Using a reliable speedometer tester, compare reading of vehicle to that of speedometer tester. See SPEEDOMETER ALLOWABLE VARIATION chart. If the speedometer reading does not fall between standard variation range, replace speedometer.
SPEEDOMETER ALLOWABLE VARIATION
| Speed Displayed MPH (km/h) | Allowable Variation +/- MPH (km/h) |
|---|---|
| 20 (32) | +/- 1.5 (2.4) |
| 40 (64) | +/- 1.5 (2.4) |
| 60 (97) | +/- 1.5 (2.4) |
| 80 (129) | +/- 2.0 (3.2) |
| Over 100 (161) | +/- 2.5 (4.2) |