Gary Calhoon, Author at Transmission Digest
Analyzing Failure Patterns

We all know that the 4L80-E is a very common transmission, and in many applications that it is used in it sees moderate to heavy-duty usage. Because of its popularity, we see many of them in the shop. As with anything that comes into your shop on a regular basis, you can see certain failure patterns emerge that make for a good case-study. This article focuses on one such concern that grew into solving other issues as well: engine stalling upon reverse engagement, occurring immediately or shortly after installation of a remanufactured transmission.