Throttle valve actuator removal

A diesel does not throttle air the way a petrol engine does. The throttle valve on
a diesel is there to help shut the engine down smoothly and to create the pressure
difference that makes EGR flow.

The actuator that drives it gets carboned up like everything else in that part of the
engine, and when it sticks you get harsh shutdown, EGR faults or a limp mode. Cleaning or
replacing the unit is the normal answer.

What we would rather do first

Most of the cars that arrive asking for removal do not need it. They need the
underlying fault finding and fixing, and the system putting back into a working
state. That is diagnostics, and it is a real service rather than a way of hiding a
warning light.

We have the diagnostic equipment and the rolling road to prove a repair worked
rather than assume it did. If a repair is not viable and the vehicle is genuinely
off road, export or competition, we will talk about the alternative.

For the trade

This is one of the jobs available through our dealer file service. Send the
original read, tell us the vehicle and what you need, and the file comes back
checked. If a job carries mechanical conditions on the car, they are listed in the
coverage table below and they apply to your customer’s vehicle too.

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