A/T - Shudder/Boom In Third Gear

88ford11

TRANSAXLE - ATX - LOW SPEED SHUDDER AND BOOM IN THIRD GEAR

Article No. 88-11-5

FORD: 1986 TEMPO

LINCOLN-MERCURY: 1986 TOPAZ

ISSUE: A low speed shudder and boom while driving in third gear may be caused by shift point variances in the 2-3 upshift and 3-2 downshift pattern.

ACTION: To correct this, install a new design main control service kit that revises the part throttle 2-3 upshift and 3-2 downshift pattern. Refer to the following service procedure.

1. Obtain main control service kit, (E6FZ-7A230-A).

FIGURE 5:

2. Replace the 3-2 control valve bore plug and retainer with a 3-2 downshift valve, spring and flat plate retainer. Refer to Steps 1 and 2 of Figure 5 and Section 17-25 of the 1986 Car Shop Manual, Volume E.

3. Replace the 2-3 spring with a two-spring "Nested" assembly from the kit. Refer to Step 3 of Figure 5.

PART NUMBER PART NAME CLASS

E6FZ-7A230-A Main Control Service Kit C

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Eligible Under Basic Warranty and Powertrain Coverages
OPERATION: 881105A
TIME: 2.0 Hrs.
DLR. CODING: Basic Part No. 7A100
Condition Code: 09