2001 Excursion, F-Super Duty, 250-550, Motorhome, 10/2000 ZF S6-650/6S-750 Troubleshooting Guide

About this manual

This document serves as a troubleshooting guide specifically for the ZF S6-650 and 6S-750 transmission models. It is designed to assist technicians with diagnosis and testing procedures related to the transmission and clutch system.

The manual provides detailed instructions on how to evaluate noise, inspect for clutch slippage, check for chatter or shudder, identify drag issues, and address hard shifting problems. It includes a symptom chart that correlates specific operational conditions with possible sources of failure.

What's inside

• Description and Operation
• Diagnosis and Testing
• Noise Evaluation
• Clutch Slippage Inspection
• Clutch Chatter or Shudder
• Clutch Drag Inspection
• Hard Shifting Inspection
• Symptom Chart

Specifications

Frequently asked questions

What is the first step in diagnosing transmission noise?

Carry out the Noise Evaluation procedures with the transmission cold and at normal operating temperature.

How do you verify if a clutch is slipping?

Shift to fourth gear, increase engine rpm to 2000, slowly release the pedal; if the engine stalls within five seconds, it is not slipping.

What should be checked first for hard shifting?

Verify that the clutch hydraulic fluid reservoir is filled to the correct level.