August 2001 Archives - Transmission Digest
August 2001 Issue

Issue Summary:

In the General Motors THM 4L80-E/4L80-EHD, no converter clutch, trouble code 68 in Overdrive and trouble code 39 in Drive 3 may be caused by an incorrectly installed TCC enable valve.

A blown fuse in 1991-95 Cadillacs equipped with the THM 4T60-E can cause 3rd-gear starts before or after overhaul.

In Saturn MP6/MP7 units, delayed or harsh reverse engagement and repeat failures of the external filter seal may be caused by a broken spring or bore wear.

The new center support for the Ford A4LD will retrofit as long as the new selective No. 4 and No. 3 thrust bearings are used.