Aspire L4-81 1.3L SOHC (1994)
Shift Modulator: Customer Interest
A/T - ATX No Upshift in Cold Ambient Temperatures
Article No.
96-5-10
02/26/96
TRANSAXLE - ATX - NO UPSHIFT IN COLD AMBIENT
TEMPERATURES - VEHICLES BUILT THROUGH 10/1/95
FORD:
1994-95 ASPIRE
ISSUE:
A delayed or no 1-2 upshift may occur on some vehicles during cold ambient temperatures. This may be due to moisture buildup in the vacuum
modulator causing corrosion and ice inside the modulator and vacuum line.
ACTION:
Replace the modulator and install an additional length vacuum line and vacuum tee. This will reduce the possibility of moisture buildup by forming an
upward loop/trap in the vacuum line. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
1.
Replace the vacuum modulator with a new vacuum modulator (F4BZ-7A377-A). Do not attempt to clean the old modulator. Refer to the
appropriate year Aspire Service Manual for details.
2.
Remove the vacuum line hose from the upper intake manifold to the fuel pressure regulator. Refer to Figure 1.
