Why might a car with a new battery and starter not start?

Answer 1

sounds like the starter solenoid

AnswerDid you check the selenoid? Another possibility is that it could be a faulty brand of starters. Try a different manufacturer if there is a compatible. I replaced 4 in 2 months...then tried a different brand. No more problems. Meanwhile, to get it started(a little trick someone taught me that worked), have someone tap the starter repeatedly(not bang -but a healthy tap)while simultaneously trying to start the car. AnswerMany newer vehicles also have a main fuse for the ignition system which will prevent anything from happening if it is blown. It may have blown when installing the new components. AnswerTo answer this, one forst needs to know if it is not cranking (doning nothing when the key is turned) or it is cranking but not starting. Answerdoing nothing when key is turned on

1 of 4 things.

1) if have a security chip key.....chip has gone bad, or need to enter a security code after battery was replaced (newer high end car's have this thieft protection)

2) ignition switch faulty

3)starter wiring circuit, poor connection

4) selenode / starter faulty

AnswerI had a similar problem to this not so long ago with my 96 Honda Civic - I replaced the battery and the starter, neither of which fixed the problem. I was about to change out the key/ignition switch column when I took it to a mechanic. Turns out that the problem was with my clutch switch. So, if your car isn't automatic, it might be worth checking that out. . .