A/T - AOD Harsh 1st To 2nd Gear Shift

87ford11

TRANSMISSION - AOD - 3.8L - HARSH 1-2 Article No.
SHIFT - TRANSMISSIONS BUILT FROM 87-2-17
09/01/85 TO 12/01/85


FORD 1986 THUNDERBIRD

LINCOLN-MERCURY 1986 COUGAR

Figure 34:

ISSUE: A harsh 1-2 shift on vehicles with AOD transmissions built between September and December, 1985 may be caused by the 1-2 accumulator spring. The transmissions are model PKA-CB with build dates of J, K, L, or M indicated on the transmission tag. See Figure 34.

ACTION: To correct this, install a new design 1-2 accumulator spring (E6SZ-7F284- A) using the procedure listed below.

1. Perform throttle valve ("TV") pressure adjustment using 1986 Car Shop Manual, Section 17-20-4 and TSB 82-2-16 (revised TV pressure to 33 PSI).

NOTE: Continue with this procedure only if Step 1 does not correct the harsh 1-2 shift.

2. Remove the valve body as outlined in the Car Shop Manual, Section 17-20 and remove the 1-2 accumulator shift valve and spring as shown in Figure 34.


3. Replace the orange spring with a new yellow 1-2 accumulator shift valve spring (E6SZ- 7F284-A).

4. Install the 1-2 accumulator shift valve and valve body.

PART NUMBER PART NAME CLASS

E6SZ-7F284-A 1-2 Accumulator Spring C

OTHER APPLICABLE ARTICLES: 86-2-16
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual
OPERATION: SP870217A - Adjust TV linkage
TIME: 0.4 Hr.
OPERATION: SP870217B - Replace 1-2 accumulator spring
TIME: 0.7 Hr. DLR. CODING: Basic Part No. 7F284 - Code: 53