What now changed cam sensor getting fuel out of line that has a cable stem in it only sometimes when turning the key on anyone have a suggestion

What could cause this only does it when cold

my remote doesnt have the back to it, so i think thats why it isnt working. I even bought a new battery. and the alarm will go off if I dont unlock the driver side door first with the key. and now sometimes the car wont start at all. I went to get a new starter but when i came back to put it in the car I tried to start the car again and it started. So it will not start sometimes and when it doesnt start it stays saying security on the display panel. I went to the dealer to try to get a back or another remote, but they said that they discontinued that remote. Now Im stuck at the library looking up info on the alarm system and what can i do to get home

the manual says refer to dealership and the dealership doesn't know how to do it

My car was stolen with the keys so i removed my entire column once my car was located. I now need to replace the original. they are not the easiest to find so how many years off can i go?

Replaced fuel regulator, my mechanic said it was leaking, got car back. ran fine for a couple days, drove it a couple
more days and now car is randomly dying again.. Any advice would be appreciated. Car seems to run fine and just dies out of the blue..

where is the location of the starter

it is not leaking from the radiator but but it is still saying that the engine is overheating....only when driving for a period of times this happens

I installed a new starter and an alternator. Had to move wiring and disconnect several items in order to remove intake manifold to change starter. Volt meter shows alternator is charging but panel shows zero battery volts. fuel gauge does not show level. chime rings when lights are turned on. Had to disconnect and reconnect multi cable supplying injectors. Suggestions to correct

it blows every three days

My cadilac is slowly leaking antifreeze. coolant level message comes up about once a week?

they only occur after the firlst time i start it in the day then after that it seems like it has trouble turning on then when i drive sometimes it accelerates by it self or trys to turn off