Harsh 3-2 Shift - High Altitude Only

Figure 5 - 3-2 Control Valve Line Up:

1985-90 440T4

SERVICE PROCEDURE

A harsh 3-2 shift condition at high altitude may be corrected by installing the appropriate Service Package (package 8675936 contains more components) that contains:

(1) 3-2 Control Valve Spring (Item # 341, Figure 5)
(2) Spacer Plate Gaskets
(1) Instruction Sheet

IMPORTANT: Service Replacement Transaxle Assemblies (S.R.T.A.) are built with original calibrations and may need to be updated with service 3-2 control valve springs per customer requirements.

Figure 1 - Transaxle Identification Information:

SERVICE PARTS INFORMATION
SERVICE MANUAL REFERENCE

Refer to the THM 440T4/Hydra-Matic 4T60 (ME9) Automatic Transaxle Unit Repair Table Of Contents for control valve assembly service information.

Figure 8 - Designated High Altitude Counties*:

SERVICE NOTES

Before installing a Service Replacement Transaxle Assembly (SRTA) in areas designated as "high altitude", install the new 3-2 control valve spring. Refer to Figure 8 for a geographical listing of high altitude areas.

Also ensure that the 3-2 control valve and the 1-2 servo control valve move freely in their bores.