hello all, looking to see if i can possibly get help trying to get my 03 sedan to start reliably.

last week my starter went out (atleast i think) and i replaced it yesterday and the car started 3x after i lowered it on the ground and around 20 minutes later after i put the jack and tools away and went to move the car back to its spot from where i lifted it and nothing. just a single click just like it was doing before i replaced the starter.

after repeatedly turning the key a couple times i got it to crank and turn over just fine to move it back and turned in off again and tried to start it and back to the click

got it to start one final time before leaving it alone although this time i did hold the key for around 5-10 seconds in the start position after it clicked and the car cranked and started so not sure if that means anything

the cars has had intermittent starting problems for the past year or so but it’s never not started, i would always just hear a loud kind of grind/screech but i would just turn the key back and usually it would just start the second third time varying.

to name some things i recently replaced not even a month ago
coil packs (hitachi)
spark plugs
cam sensor(hitachi) and connector pigtail
vvt selonoid (hitachi)
and the battery is only about a year old aswell

throughout all of this from it originally going out and since i’ve replaced it the car hasn’t thrown a single code either

if anything could provide any insight or help it would be really appreciated and if anyone has any other questions let me know
thanks

 

Check the ground connections for corrosion. Make sure the battery terminals are clean and properly tightened. Have the battery checked. Sometimes, even new batteries can fail. Also find and check the starting relay. You can find the factory service manuals at https://www.nicoclub.com/infiniti-service-manuals. They are free.