I really don't know how else to describe it. Car has no issues starting or running, but for about the last 2 months every time I cold start it, the engine makes a sharp, high-pitched noise like a sneeze.
Can anyone tell me what this is or why it's happening?
Ok, I finally managed to record the noise. I realised in my attempts to record that it certainly does not happen "every time". It happens maybe one time in ten, and rarely on a cold start. More often than not, it happens after I've been driving for a while and then stop and start the engine.
Here's the link to the video. You can clearly hear the squawk just after it starts.