A/T - Late 1-2 Full Throttle Shifts
Number: 86-244Section: 7A
Date: AUG., 1987
Subject: LATE 1-2 FULL THROTTLE SHIFTS
Model and Year: 1986 CAMARO MODELS WITH 700-R4 TRANSMISSION AND 5.0L MPFI ENGINE
TO: ALL CHEVROLET DEALERS
Some 1986 Camaro models equipped with 5.0L MPFI engines and THM 700-R4 transmissions may experience late 1-2 shifts under full throttle acceleration.
FIGURE 1 - THM 700-R4 TRANSMISSION IDENTIFICATION INFORMATION:
A service package has been developed to repair 1986 YZM or YWM model THM 700-R4 transmissions that exhibit this condition. Changes were made in production beginning June 19, 1986, (Julian date 170, Figure 1).
FIGURE 2 - VALVE BODY EXPLODE:
PARTS INFORMATION (Refer to Figure 2)
Service Contents Model
Package No. Affected
8648954 Instruction Sheet 6YWM
Valve - Low Range Upshift (353) Valve - Low Range Downshift (321) Sleeve - Low Range Control (320)
8648955 Instruction Sheet 6YZM
Valve - 2-3 Throttle (315) Sleeve - 2-3 Throttle Valve (313) Valve - Low Range Downshift (321) Valve - Low Range Upshift (353) Sleeve - Low Range Control (320)