Topaz L4-140 2.3L HSC (1984)
Radiator Cooling Fan Control Module: All Technical Service Bulletins
Engine - Hard Starting/Surge On Driveaway
Article No. 85-9-14
HARD STARTING - AFTER HOT SOAK - 2.3L HSC
SURGE ON DRIVEAWAY - AFTER HOT SOAK - 2.3L HSC
HESITATION ON DRIVEAWAY - AFTER HOT SOAK - 2.3L HSC
FORD 1984 TEMPO
LINCOLN-MERCURY 1984 TOPAZ
Hard starting, surge on driveaway or hesitation on driveaway (all after a hot soak) may be caused by high underhood temperatures after engine shutdown.
These concerns may be corrected by reworking the cooling fan system to allow the fan to continue to run for a while with the key off to reduce
underhood temperatures during hot soak.
Figure 14DUTY CYCLE SOLENOID (MOUNTED ON ENGINE BULKHEAD)
NOTE:
Before reworking the cooling fan control system, check the Fuel Control Solenoid vacuum tee for blockage. (See Figure 14). If blockage is
evident, replace the solenoid. This could be the cause of the drive conditions.
1.
Refer to the 1984 Powertrain Car Shop Manual, Volume "E", pages 27-10-9, 27-10-10, and 27- 10-23 for circuit diagrams.
2.
Disconnect the negative battery cable.
3.
Perform the appropriate procedure based on vehicle equipment.
VEHICLES WITH A/C - 50 STATES 50 States with ATX
A.
Remove fan controller (located behind glove box door opening) from vehicle by prying up the locking tab on bracket and pulling down on
controller. Disconnect the harness connector.
B.
Remove mounting bracket from new fan controller (see parts application chart), and install new controller on old existing bracket mounted in
vehicle. Reconnect the harness connector.
C.
Proceed to Step 4.
50 States with MTX
A.
Remove fan controller (located behind glove box door opening) from vehicle by prying up the locking tab on bracket and pulling down on
controller. Disconnect the harness connector.
B.
Remove mounting bracket from new fan controller and install new controller (see parts application chart) using old existing bracket mounted in
vehicle.
