Greetings 9Kers, I need to do a little brain-picking please. First question, is it possible for low-speed cooling fan to fail to operate when air-con switched on if system needs re-gassing?. Seccond question, I started car, just to move it, and it was only running on 3 cylinders. I resisted the urge to rev it and as I was pulling up the 4th. pot chimed in. It had been fine earlier when driving to work and ditto tonight coming home. Plugs are recent and the 'right ones', any thoughts appreciated. Thanks in advance,TGI Friday!!!.