This may be a daft question, but here it is anyway:

Can you hear the throttle body working if its okay?

reason i ask is i used to be able to (i think) hear it after turning off the engine but not anymore and i'm trying to work out whether it's suffered the stripped teeth and is now stuck in a position which is causing the painfully slow take off from a standing start 90+% of the time.

it happens whether i'm in full auto or command shift, no codes logged or dash messages. wondering if i should just replace the throttle body with new and recalibrate the airway afterwards. Range Rover L322 (the current posh one)
Discovery 2 (just gone)
Discovery 1 (long gone)

There is really only one way to find out take it off and open it to see.

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Replace it with the repair kit you can purchase.
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I glued and screwed mine to make sure it was really secure.
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Close it back up after and fit to the car.
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Link for kit.
https://www.ebay.co.uk/itm/254231184504

Or you could wait until the person i got mine from as them back in stock, he puts a price of £100 on the kit until he get more in then they are around £33 used to be £29.99. https://www.ebay.co.uk/itm/333581617648