Common Causes of Gear Slipping on a Volvo I-Shift Transmission

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If you drive a Volvo truck with an I-Shift transmission, you may have experienced gear slipping at some point. While damaged gears, low transmission fluid, and a clogged filter are all potential causes of gear slipping, there are other issues to consider as well. In this article, we will discuss some of the most common causes of gear slipping on a Volvo I-Shift transmission and how to fix them.

1. Faulty clutch actuator

The clutch actuator is an air or electrically operated component that controls the engagement and disengagement of the clutch. If it is not functioning properly, it can cause the gears to slip. To fix this issue, the faulty clutch actuator will need to be identified and replaced.

2. Clutch actuator solenoid

The clutch actuator solenoid is responsible for controlling the flow of hydraulic fluid to the clutch actuator. If it is faulty, it can cause the gears to slip. To fix this issue, the faulty clutch actuator solenoid will need to be identified and replaced.

3. Faulty TECU gearbox control unit

The TECU (Transmission Electronic Control Unit) gearbox control unit controls the flow of hydraulic fluid to the clutch actuator and other components in the transmission. If it is faulty, it can cause the gears to slip. To fix this issue, the faulty TECU gearbox control unit will need to be identified and replaced.

4. Faulty TECU

The TECU is responsible for controlling the transmission and ensuring that it is shifting properly. If it is faulty, it can cause the gears to slip. To fix this issue, the faulty TECU will need to be identified and replaced.

It is important to properly diagnose the cause of gear slipping before attempting to repair it. Replacing the wrong component can lead to further problems and costly repairs. If you are experiencing gear slipping on your Volvo I-Shift transmission and are unsure of the cause, it is best to consult a professional mechanic or Volvo dealership for assistance.

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Chris Nolan

Shift Trans skipping gears and not down shifting right

Chris Nolan

Shift Trans skipping gears and not down shifting right

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