Operation CHARM: Car repair manuals for everyone.

Speedometer - Indicates High Speed When Cold


9228ford02

Article No. 92-12-9


DATE: 06-03-92


SPEEDOMETER-MECHANICAL (ANALOG)-INDICATES HIGH SPEED AT LOW AMBIENT TEMPERATURES (ABOUT 20 DEGREES F OR -7 DEGREES C OR BELOW)- VEHICLES BUILT AFTER 4/1/90


FORD:
1990-92 ESCORT, MUSTANG, TAURUS, TEMPO

LINCOLN-MERCURY:
1990-92 SABLE, TOPAZ, TRACER

LIGHT TRUCK:
1990-91 AEROSTAR, BRONCO, ECONOLINE, F-150-350 SERIES
1990-92 RANGER
1991-92 EXPLORER


ISSUE:
Mechanical speedometers may indicate higher than actual vehicle speed at low ambient temperatures (about 20~ F or -7~ C or below). This occurs because of insufficient lubrication at lower temperatures. The speedometer will indicate speed correctly after the vehicle warms up.





ACTION:
Replace the speedometer head with a service speedometer assembly. Speedometer part numbers are identified in the Parts Block/Application Chart. Refer to the appropriate Service Manual for removal and installation details.


OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under Bumper To Bumper Warranty Coverage For 1992 Models And Basic Warranty Coverage For All Other Model Years
OPERATION DESCRIPTION TIME
921209A Replace Speedometer 0.8 Hr.
Assy. - Escort/Tracer
921209B Replace Speedometer 1.2 Hrs.
Assy. - Taurus/Sable
921209C Replace Speedometer 1. 1 Hrs.
Assy. - Tempo/Topaz
921209D Replace Speedometer 1.2 Hrs.
Assy. - Mustang
921209E Replace Speedometer 0.7 Hr.
Assy. - Econoline
921209F Replace Speedometer 0.8 Hr.
Assy. - Aerostar/Fl5O-350/Bronco
921209G Replace Speedometer 0.8 Hr.
Assy. - Ranger
921209H Replace Speedometer 0.8 Hr.
Assy. - Explorer
DEALER CODING BASIC PART NO. CONDITION CODE
17255 51
OASIS CODES: 204000, 204200