Recently noticed my FG is making a strange noise from under the engine, it only happens once.

Turn the car on, pull out of driveway accelerate to 14km/h, hear single clunk noise.

At first I just thought it was the car locking itself at 13km/h however I have since turned that off and it will consistently make this noise when you start her up and hit that 14 mark.

Anyone got any ideas as to what I can look into?

Abs module ?

Due for a service in about 3k. Guess I'll mention it then, doesn't seem to be a violent noise as in rough.