Speedometer - Reads Higher Than Actual Vehicle Speed

Bulletin No.
014/92

Issued
7/22/92

Revised



Category
T



Applicable Model/s
1991-'92 Navajo



Subject
SPEEDOMETER INDICATES HIGH SPEED AT LOW AMBIENT TEMPERATURE



DESCRIPTION

Some mechanical speedometers may indicate a speed higher than the actual vehicle speed when the ambient temperature is below 20~F (-7~C). This occurs because of insufficient lubricant at these lower temperatures. As the vehicle warms up, the speedometer will indicate the correct speed.


INSPECTION & REPAIR PROCEDURE

When the above condition is observed, the speedometer head should be replaced with a corrected, certified unit. A corrected unit is identified by an orange dot on the box. Refer to the Workshop Manual, Section T-03, for removal and installation procedures.


PARTS INFORMATION

PART NUMBER DESCRIPTION

ZZL1 55 471 Speedometer Assembly


WARRANTY INFORMATION
(Applies to vehicles covered under warranty.)

Warranty Type Code:
A

Customer Comment Code:
65

Damage Code:
9W

Part No. of Main Cause:
ZZL1 55 471

Operation No:
T0608XRX

Labor Hours:
1.1 Hrs.