A/T - Firm or Harsh 1-2 Shift

85pontiac07

Number:
85-7-37

Date:
11/85


Subject:
FIRM OR HARSH 1-2 SHIFT

ALL 1982 THRU 1984, SOME EARLY 1985 THM 700-R4 MODELS


This Service Bulletin supersedes Pontiac Bulletin 85-7-12 dated March 1985, which should be destroyed.

Some 1982 through 1985 THM 700-R4 transmission models may exhibit a firm or harsh 1-2 shift condition. After the complaint has been verified, inspect the T.V. cable for proper operation and adjustment. (Follow the T.V. cable adjustment procedures contained in the appropriate Service Information Manual.) If the T.V. system is operating properly, a service package (see charts) may be required to correct the condition. Adjustment of the T.V. cable will also be required after repairs have been made to the transmission.














The charts show the model year, transmission models, service package part numbers and package contents. The highlighted transmission models and service package part numbers indicate additional information not included on the previously issued bulletin. The "NOTES" included within the chart indicate when the new parts went into production on some of the 1985 models.

Figure 1 - THM 700-R4 Transmission Identification:

Figure 4 - Typical Valve Assembly Control Body:

Figure 2 - Accumulator Piston Assembly:

Figure 3 - 2-4 Servo Assembly:

Refer to Figure 1 for transmission model identification and Figures 2, 3, and 4 for identification of the parts contained in the packaged. All the parts shown in Figures 2, 3, and 4 are not included in every package, but they are shown in order to assist the technician in disassembly and assembly.

Refer to the appropriate Service Manual for part removal and installation procedures.