So Monday morning, car doesnt start - starter motor tries to turn over, getting worse and worse until eventually nothing happening. Fairly straightforward flat battery. Its been on the way out for a while, so i get a replacement Bosch one.
Battery arrives yesterday, i swap it in for the old one, and do a test fire up. starter motor chugs away, engine catches and starts fine. Problem solved i think. I leave it idling a minute and then switch off and come in.
However, this morning, same thing again, but no starting. starter motor can be heard turning with the vigour only a fresh battery can give, but car not starting! Not coughing or spluttering or trying to start, nothing. just the sound of the starter motor going.
my knowledge of engines extends to needing all of air, fuel and spark to start, but i dont know any further than that!
Anyone got any ideas? Thanks in advance!
(its a standard 2003 350z)