1. What is Torque Converter Slip?

Torque converter slip is the difference between engine RPM and transmission input RPM, expressed as a percentage. It represents the efficiency loss in the torque converter and helps diagnose transmission performance issues.

2. How Does the Calculator Work?

The calculator uses the torque converter slip formula:

Where:

• \( Engine\ RPM \) — Engine revolutions per minute
• \( Trans\ RPM \) — Transmission input revolutions per minute

Explanation: The formula calculates the percentage difference between engine speed and transmission input speed, indicating how much power is being lost in the torque converter.

3. Importance of Slip Calculation

Details: Monitoring torque converter slip is crucial for diagnosing transmission problems, assessing vehicle performance, and determining when maintenance or repairs are needed. Excessive slip can indicate worn components or fluid issues.

4. Using the Calculator

Tips: Enter engine RPM and transmission RPM values. Both values must be valid (engine RPM > 0, trans RPM between 0 and engine RPM). The calculator provides results in both decimal and percentage formats.

5. Frequently Asked Questions (FAQ)

Q1: What is considered normal torque converter slip?
A: Normal slip typically ranges from 2-8% under load. Higher values may indicate problems with the torque converter or transmission.

Q2: When should I be concerned about slip percentage?
A: If slip exceeds 10-15% under normal driving conditions, it may indicate torque converter or transmission issues that require inspection.

Q3: How do I measure engine and transmission RPM?
A: Use a diagnostic scanner or tachometer for engine RPM, and transmission input speed sensor readings for trans RPM.

Q4: Can temperature affect torque converter slip?
A: Yes, transmission fluid temperature can affect slip. Always check readings when the transmission is at normal operating temperature.

Q5: What causes excessive torque converter slip?
A: Common causes include low transmission fluid, worn torque converter clutch, damaged seals, or internal component wear.