上汽通用别克汽车维修手册-7c4.pdf

SECTION 7C4 - HYDRA-MATIC 4L60-E AUTOMATIC TRANSMISSION ON-VEHICLE SERVICING IMPORTANT Before performing any Service Operation or other procedure described in this Section, refer to Section 00 CAUTIONS AND NOTES for correct workshop practices with regard to safety and/or property damage. 1. GENERAL INFORMATION Information in this Section, details service operations that can be carried out on a transmission while it is still installed in the vehicle. Introduced as a running change in VT Series II models a revised design automatic transmission fluid cooler with an increased heat transfer efficiency was fitted, from a production serial number of L579900 and date of April 10, 2000. On V6 naturally aspirated engined vehicles, this cooler design change means that the external cooler the can now been deleted. Those VX Series models fitted with the V6 Supercharged engine retains the single in-tank radiator cooler and external cooler introduced as a running change in VT Series II vehicles from a production serial number of L518684 and date of October 18, 1999. Refer Section 7C4 ON-VEHICLE SERVICING in the VT Series II Service Information. The automatic transmission oil cooler design for those VX Series models fitted with the GEN III V8 engine remains unchanged from the original. For information relating to this oil cooler package, refer to Section 7C4 ON-VEHICLE SERVICING in the VT Series II Service Information. As a change in procedure, a tool has been released that allows the replacement of the manual shaft oil seal, without requiring the removal of the oil pan, control valve body and manual shift shaft. Only these items are detailed here. Therefore, for on-vehicle service operations not included i