How to say “That rattling started as soon as the ventilation unit came on.” in Japanese

In Japanese

換気装置(かんきそうち)をつけた途端(とたん)に、あのガタガタいう音(おと)がし始(はじ)めたんだよ。

Kanki sōchi o tsuketa totan ni, ano gatagata iu oto ga shihajimeta n da yo.