Hi there. New to the forum and was wondering if someone might be able to help? Since last year, we have had problems with our car in hot weather. Car starts up fine when we set off in morning, then when we want to return home, and weather is hot, the car attempts to turn over but will not start. Have to be careful not to do this too much or it drains the battery. If we leave the car for a couple of hours, it sometimes will then start up (frustrating when it’s once the RAC have arrived!).
A family member found that if we switched the AC relay and fuel pump relay that this used to start the car, but now this no longer works. He also cleaned all the relays and changed fuses, but problem remains.
Have taken it to dealer, but they run diagnostics which do not show a fault. Mechanic thought crank shaft sensor might be at fault, so we had replaced, but issue was still present.
Frustrating as car runs fine in colder weather (below approx 18 Celsius), and mechanics can not look at it unless it’s got the fault when it’s with them. Tried leaving it with the dealer for a few days last year, but problem did not occur.
Has anyone else had this issue, or could offer any help?