Operation CHARM: Car repair manuals for everyone.

Turbo Hydra-Matic 4L80-E & 4L80-Ehd


1. Disconnect vehicle speed sensor electrical connector.
2. Remove sensor attaching bolt.
3. Using speed sensor remover and installer, tool No. J 38417, remove sensor, then O-ring seal.
4. Reverse procedure to install, lightly coating the new O-ring seal with transmission fluid. Tighten to specifications.