Which of the following is NOT typically performed during a preliminary transmission inspection?

During a preliminary transmission inspection, it's essential to gather as much information as possible about the system's condition before diving deeper into any repairs or diagnoses. Checking the condition of the filter is typically not part of the initial inspection process. Instead, a preliminary inspection focuses on easily observable conditions that can indicate immediate issues.

Checking the transmission fluid level is fundamental because it helps assess whether the transmission has adequate lubrication and whether the fluid is at the appropriate height for optimal performance. This is often the first step in identifying potential fluid-related issues.

Visually checking wiring and electrical connections is also critical. Many modern transmissions have electronic controls, and any problems with the wiring can lead to unexpected behaviors or failure. Ensuring that these connections are secure and free from damage can prevent further complications down the line.

Checking for fluid leaks is important as well since leaks can indicate problems with seals or gaskets, which could lead to low fluid levels and significant transmission damage over time if not addressed.

In contrast, examining the condition of the filter typically occurs later in the diagnostic process when a technician assesses the internal components of the transmission, as accessing the filter usually requires additional steps beyond a preliminary inspection.