1 thing I noticed when my starter was going in my suv, I tried the hammer thing it didnt work the relay had gone in it and when this happens you car WILL start when it is cold or sat for a few hrs etc but you cant start it then run it and turn it off and try to restart it. If this happens get a new starter. Mine I went ok with mine for like 2 weeks just because i would start it and go to work, work all day then start it go to my other job work all night lol. Then would start all over again. So alot of starting.