I replaced my battery and alternator now my car won't start sometimes it makes a clicking sound and sometimes it try to start

If the battery and starter is good I would check the starter solenoid.

I once had a chvy lumina car that had a similar problem. I ended up replacing the alternator that was not charging up the battery. The battery was replaced first and then the alternator. In addition, the electronic motherboard was replaced underneath the coil pack. I did all the work myself. No more electronic problems. If they did a diagnostic test on your car and it showed a bad battery then the battery should be tested by Autozone. Go to Oreilly's too for test.

serch no more this is deffinightly a bad earth or the starter is stuck 100 %

the clicking that you hear is coming from the starter relay. sounds like your ignition starter switch or ignition lock cylinder is bad.

Your Main Battery is Flat, get a jump start if its safe or remove the battery and hook it up to a charger. Maybe you left your lights on, or your alternator isnt charging the battery properly when your driving around. Sometimes this can be the bushes located in the alternator.

Know this problem was posted several years ago, but having same issue with my 2008 Nissan Rogue. We've tried everything short of having the battery replaced, (including charging it), and nada. So, tomorrow morning, that'll be our next move. Sucks, but best thing to die. Much rather than than an alternator, starter or solenoid.

this could be as simple as a bad battery have you tryed to jump start it? if you try and that dosent work make sure you have power going to the starter with jumper cables on the battery. it should at the very least make a clicking sound while trying to start it check the battery posts also make sure they are clean and if it does click give it a minute and try starting it again.[ dont take the cables off the battery while waiting] the fact the starter doesent even click when you try to start it tells me no power to it or bad starter remember just because its new dosent mean it works i cant tell you how many times i have put somethig on a car and had to take it back off because it didnt work from the boxx new. and make sure the starter wires are tight and clean. if no clicking and you have power to starter then starter is bad.. i hope this helps..

The battery/ brake light was caused by the alternator. so make sure the battery is good and good connections. turn the headlights on and be sure they are bright.

sounds like a faulty alternator have it checked and serviced.

Depends on the sound that it makes when you turn the key over.

Clicking noise...usually the starter

If it sounds like its going to start, but doesnt, most likely the battery.

If you have replaced the battery recently, then its the alternator.

Sometimes there can be oil build up over the spark plugs so it doesnt get the spark to start.

Hope you get it fixed!!