Torque Converter Replacement

Torque converter replacement for shudder at steady speed, stalling at a stop and slipping, diagnosed on site before the work is booked.

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Service Info

Typical Duration 6 hours

We confirm the torque converter rather than an engine misfire or valve body fault is responsible, remove the gearbox, replace the converter, flush the cooler circuit, refill with the correct fluid at the specified temperature and road test through lock-up.

Skip the garage, our master mechanics come to you

At your home or office
Fair & transparent pricing
6-month, 6000km warranty

The Most Trusted Torque Converter Replacement

The torque converter is the fluid coupling that replaces a clutch in an automatic car. It multiplies torque when you pull away and then locks up at cruising speed to avoid wasting fuel. When its lock-up clutch begins to fail you feel a shudder at steady speed, often mistaken for a misfire or rough road. Michanic diagnoses torque converter faults at your home or office and arranges the replacement, which requires the gearbox to be removed.

Why Choose Our Torque Converter Replacement Services?

  1. Shudder Correctly Identified:
    Lock-up shudder feels like a misfire. Diagnosing it properly prevents spending money on plugs, coils and injectors that were never the problem.
  2. Fluid Condition Matters:
    A failing converter contaminates the transmission fluid with friction material, which then damages the rest of the gearbox if left.
  3. Whole System Considered:
    Debris from a converter reaches the cooler and valve body. Flushing those is what stops the new unit being ruined.
  4. Honest Scope:
    The gearbox has to come out. You are told what that involves before any commitment.

Why We are the Best Choice for Torque Converter Replacement

  • Diagnosis on Live Data:
    Lock-up clutch slip is visible in the transmission data, which turns a subjective shudder into a measured fault.
  • Cooler Flushed:
    Any debris left in the transmission cooler circulates straight into the new converter. It is flushed as part of the job.
  • Correct Fluid Refill:
    The transmission is refilled with the exact specification and filled to level at the correct temperature.
  • Road Tested Through Lock-Up:
    The car is driven at the speeds where lock-up engages, which is exactly where the fault presented.

A torque converter failure is one of the few faults that can quietly destroy the rest of the transmission. As the lock-up clutch lining breaks down, that friction material circulates in the transmission fluid and reaches the valve body, where it blocks the narrow passages controlling gear changes. What starts as a shudder at cruising speed can become a gearbox that will not shift correctly at all. That is why the fluid condition and the cooler circuit matter as much as the converter itself.

Frequently Asked Questions

  • What does a failing torque converter feel like?
    Most often a shudder at steady cruising speed, as though driving over rumble strips, which appears and disappears as the lock-up clutch engages. Stalling as you come to a stop and slipping under acceleration are the other signs.
  • Is it a misfire or the torque converter?
    They feel similar, which is why plugs and coils are often replaced first without result. A misfire is usually present under load and at idle, while lock-up shudder appears only in a narrow speed range at steady throttle.
  • Can a torque converter be repaired?
    Converters are sealed welded units, so they are replaced or exchanged for a remanufactured one rather than repaired in place. The fluid, cooler and valve body condition are assessed at the same time.
  • Will a fluid change fix converter shudder?
    Occasionally, if the shudder is caused by degraded fluid rather than a worn lock-up lining, and it is always worth trying first because it costs far less. If the lining has broken down, fresh fluid only postpones the failure.
  • Why does my automatic stall when I stop?
    That commonly means the lock-up clutch is not releasing, so the engine stays mechanically coupled to the wheels as the car stops, exactly as though you had stopped in gear without pressing a clutch.