An EDS scan tool can monitor transmission temperature, providing crucial data for diagnosing and preventing potential issues. It can track two key temperature points: the temperature of the fluid in the transmission pan and the torque converter outlet temperature.
Monitoring these temperatures is essential for maintaining transmission health. In normal driving conditions, both temperatures start out similar. With the torque converter locked up during highway driving, temperatures may stay below 115°F. However, in stop-and-go traffic, the pan temperature usually hovers around 145-150°F, while the torque converter outlet temperature can fluctuate significantly, often reaching around 165°F.
Higher temperatures, especially in the torque converter, can indicate potential problems and lead to transmission damage. Upgrading the transmission cooler can help manage these temperatures. Replacing the factory fluid-to-fluid radiator cooler with a dedicated air-to-fluid cooler and repurposing the OEM cooler for power steering can significantly improve cooling efficiency.
Using an EDS scan tool simplifies checking transmission fluid levels. While some older scan tools may not support transmission temperature monitoring, newer models offer this crucial functionality. Even with a slightly outdated display, the data provided by a scan tool is invaluable for maintaining your vehicle’s transmission. Consult your scan tool’s documentation to confirm compatibility with transmission temperature monitoring for your specific vehicle.
