Hi all

Was in the car last night, it was driving fine with no problem. Got back in and drove it again about an hour later and it had no power at all. I could pull away in 1st and 2nd with my foot flat on the floor and it would just keep up with the traffic. It was making a loud induction noise like it was sucking in loads of air, like it was wanting to go but it was holding back.

Pulled up, switched the engine off and back on, and all was fine.

Any ideas as to what could have caused it?