On-Vehicle Inspection

INSPECT SPEEDOMETER

Check the operation.

Using a speedometer tester (calibrated chassis dynamometer), check the speedometer indication according to the table below.

Reference: mph (for U.S.A.)

REFERENCE TABLE

Chassis Dynamometer Indication	Acceptable Range
20 mph	20.0 to 23.0 mph
40 mph	40.0 to 43.5 mph
60 mph	60.0 to 64.0 mph
80 mph	80.0 to 84.5 mph
100 mph	100.0 to 105.0 mph
120 mph	120.0 to 125.5 mph
140 mph	140.0 to 146.0 mph

Reference: km/h (for Canada and Mexico)

REFERENCE TABLE

Chassis Dynamometer Indication	Acceptable range Data in () is for reference
20 km/h	(17.5 to 21.5 km/h)
40 km/h	38.0 to 42.0 km/h
60 km/h	58.0 to 63.0 km/h
80 km/h	78.0 to 84.0 km/h
100 km/h	98.5 to 104.5 km/h
120 km/h	119.0 to 125.0 km/h
140 km/h	139.0 to 146.0 km/h
160 km/h	159.0 to 167.0 km/h
180 km/h	179.0 to 188.0 km/h
200 km/h	199.0 to 209.0 km/h
220 km/h	219.0 to 230.0 km/h
240 km/h	239.0 to 251.0 km/h

NOTE: Tire wear as well as over or under inflation will cause errors.

INSPECT TACHOMETER

Compare the test results with the tachometer indications.

DC 13.5 V, at 25°C (77°F):

REFERENCE TABLE

Tune-up Tachometer indication (rpm)	Acceptable range Data in () is for reference
700	630 to 770
1,000	(900 to 1100)
2,000	(1850 to 2150)
3,000	2800 to 3200
4,000	(3800 to 4200)
5,000	4800 to 5200
6,000	(5750 to 6250)
7,000	6700 to 7300
8,000	(7700 to 8300)

HINT:

If the indication is not as specified, go to PROBLEM SYMPTOMS TABLE .