Troubleshooting the automatic transmission is simplified by using the proven method of diagnosis. One of the most important things to remember is that there is a definite procedure to follow. Do not take short cuts or assume that critical checks or adjustments have already been made.

The following procedures are recommended for checking and/or verifying that the various components are adjusted and operating properly. Use Rotunda Automatic Transmission Tester 014-00737 or equivalent. Follow the manufacturer's instructions.

Shift Linkage Check

NOTE: Check for a misadjustment in shift linkage. Do this by matching the detents in the shift lever with those in the transmission. If they match, the misadjustment is in the indicator. Do not adjust the shift linkage. Refer to Section 13 for proper selector indicator adjustment.

This is a CRITICAL adjustment. Be sure the (D) detent in the transmission corresponds exactly with the STOP in the steering column or console. Hydraulic leakage at the manual valve can cause delay in engagements and/or slipping while operating if the linkage is not correctly adjusted. Refer to Section 07-05.