Troubleshooting
Troubleshooting - Automatic Transmission
CG
This guide is preserved from Clark's Garage, a foundational 944 resource. View the original →
Tools you'll need
No special tools required — basic hand tools should cover it.
See the full tools list for where to buy each one and budget alternatives.
Introduction
This troubleshooting guide is intented to help identify and repair automatic transmission problems. The following is a list of problem symptoms discussed in this guide:
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Transmission slips, shifts are irratic, upshifts take too long, or car will not move in forward or reverse.
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Transmission will not downshift with acclerator pedal fully depressed.
Transmission slips, shifts are irratic, upshifts take too long, or car will not move in forward or reverse.
| Possible Causes | Checks | Procedure |
| ATF Level Low | Check level in transaxle reservoir and add fluid as necessary. | N/A |
| Stuck main pressure control valve. | Remove and clean valve. | N/A |
| Transaxle Internal Problems | Remove transaxle and have professionally rebuilt. | N/A |
Transmission will not downshift with acclerator pedal fully depressed.
| Possible Causes | Checks | Procedure |
| Transaxle throtte cable out of adjustment. | Adjust cable. | N/A |