Camry :: 2007 SE - Occasional Hard Start

My Dad owns a 2007 Camry SE with the 2.4 l4 engine. Occasionally most of the time in heat it is sometimes hesitant to start. It will start always on the first try but sometimes the key has to be held longer to get it started mostly though in the summer when its hot out. For example he parks a little after six in the morning at work. He don't get in the car until 5 to 5:30 in the evening. You know then it has been in the heat a while. He says it rarely happens. He also said it's not like a slow crank if something had been left on to drain the battery. It's just the key has to sometimes be held longer than normal for it to start. It's not very likely but this has happened once or twice in the winter time also.

I know the car does still have the original battery. It starts fine in the winter when cold. This hard start deal happened a few weeks ago after work also. I know out of the other toyota's he has had they have done this every once in a while to. I really myself don't think it is anything to worry about. I am just asking what might cause it to do that sometime. I would say nearly 98% percent of the time though it will start normal. This has kinda always happened since we got the car used in March 2010. I hadn't thought about much though since it rarley happens cause most of the time as I said above it will start normal.