Topaz L4-140 2.3L HSC (1984)
Thermostat: All Technical Service Bulletins
Heater - Inadequate Output
HEATER - 2.3L HSC - INADEQUATE OUTPUT
Article No.
87-2-4
FORD 1984-86 TEMPO
LINCOLN-MERCURY 1984-86 TOPAZ
ISSUE:
Inadequate heater output during highway driving may be caused by insufficient cylinder head coolant flow which causes extreme coolant
temperature changes.
ACTION:
To correct this, install a new design thermostat (E73Z-8575-A) having an orifice in the valve poppet using the procedure outlined in Car
Shop Manual, Volume E, Section 27-01.
PART NUMBER
PART NAME
CLASS
E73Z-8575-A
Thermostat
AM
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual
OPERATION: 8575A
TIME:
0.4 Hr. DLR. CODING: Basic Part No. 8575 - Code: 53