can a loose battery cause a car not to start? Options

[homebuilder]

Hi,

My car every once in a while will not start. The starter turns over but it does not catch. Then if I wait a while it will work.

A mechanic looked at it when it did this once, he went under the hood saw my battery was not tied down properly, he moved it over hit the top of the cable and it started. Now I do not know if it was him moving the battery or just the normal, wait a minute and it works.

So anyone else have this problem? Anyone think it is the battery?

I plan to secure the battery anyway, but just wondering if that's really the problem.

[homebuilder]

Did not start again this morning!!!


I pulled a plug wire and put an old spark plug in it to see if it sparked, I did not see a spark. I am not sure if I did that right, does the plug need to be touching metal for that to work?

Someone mention the cold start sensor, could that stop it from starting or sparking?

I replaced the ignition months ago so I did not think it could be that but I am afraid it might be..