I bought a second-hand 2005 Nissan Almera 1.5 just under 6 months ago, and apart from an early issue with the catalytic converter, seemed to be running okay.
However, a month or so ago, I was out running errands and the car refused to start again after my first stop. Battery and starter motor all checked out okay, and after 20 mins or so it started up fine, and drove like normal. However, after returning home I tried to start it again out of curiosity, and had the same issue. Again, it was fine after 20 mins or so.
After some experimentation, it seemed to start okay after short journeys, but not once the engine reaches full temperature.
I have since discovered that the engine fans only come on if I use the AC, so I'm assuming it is a temp sensor or relay somewhere playing up and underreporting engine temp, but I'm not sure where to look for it, or what to look for in a replacement.
Any help would be appreciated. I'm in the UK if that's relevant.