Hydra-Matic Transmission 4L40-E and 5L40-E Repair Manual

Hydra-Matic 4L40-E and 5L40-E


The Hydra-Matic 4L40-E and 5L40-E are automatic transmissions produced by General Motors (GM) for use in various vehicles. Here’s an overview of each:

  1. Hydra-Matic 4L40-E:
    • Introduction: The 4L40-E is a four-speed automatic transmission.
    • Applications: It has been used in various GM vehicles, including certain Cadillac, BMW, and Holden models.
    • Features: This transmission features electronic controls for improved shifting and efficiency. It is part of the family of electronically controlled transmissions produced by GM.
  2. Hydra-Matic 5L40-E:
    • Introduction: The 5L40-E is an upgraded version of the 4L40-E, featuring five forward speeds.
    • Applications: Like its predecessor, the 5L40-E has been used in a range of vehicles, including Cadillac, BMW, and Holden models.
    • Features: With an additional gear, the 5L40-E provides more flexibility in optimizing fuel efficiency and performance. It also features electronic controls for precise shifting.

Both transmissions are part of GM’s Hydra-Matic family and are designed to provide a balance between performance and fuel efficiency. As with any transmission, proper maintenance and care are crucial for ensuring longevity and optimal performance. It’s worth noting that my information is accurate up until January 2022, and there may have been advancements or changes in the automotive industry since then. Always refer to the latest sources or contact the manufacturer for the most current information.


Hydra-Matic 4L40-E and 5L40-E workshop manual


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