I changed the alternators starter and a brand new battery something is still draining my battery down if i dont drive it for a couple of days. ???????????????

Don't change the starter. I'd recommend a parasitic drain test. parasitic draw test YouTube

When does it die ? overnight , after a couple of days ? If it dies over night you have what is called a Parasitic drain or draw on the battery ! There is something on , a light , or a short , or one of the control modules doesn't power down . How to Test and Find Parasitic Battery Drain Key Off

You have the battery and the alternator and the alternator belt and if they are working fine there must be something that is draining the battery. You need an auto electrician to check what the drain is. In such cases,on various vehicles, the BCM, body control module, proves to have something to do with it. Get A GOOD AUTO ELECTRICIAN to check if there is a particular component
draining the battery

Sounds like a bad alternator. Drained your battery and when you turned on the lights it took all the power left in your battery. When you drain a battery down that far, they are real hard to jump, and coupled with the alternator, the car is not producing enough current to start and stay running.

I would take the alternator off and take it to oyur local auto parts store to be tested. If bad, replace it and charge the battery fully before starting. Then check voltage at battery with motor running. Should be 13.2 -14 Volts DC. If not, you may have a bad battery cable or blown fusible link. (especially that if the alternator tests good).....Mike

alternator diodes ,change alternator

check starter wiring connections must be grounded somewhere/ check also ur alternator/ battery should not drain in a few days time....

1- For the overheat, remove the thermostat to run for a few days to see the problem come back. When the engine runs at iddle, press the upper hose connecting to the radiator to see there is a water flowing inside. a- IF there is then your water pump is OK. After a few days, put back the new thermostat to run as normal. b- IF there is not then you need to replace the water pump first.
2- For your battery draining. a- IF you change only the starter, then the solenoid is the culprit, not the battery, not the alternator. b- IF you have changed both then I suspect the diode in the starter and the battery. c- To determine which one is in item b, take off negative battery cable for 2 days, - if there is no problem when hooking back then alternator diode is a culprit. - if there is a problem when hooking back then the battery is a culprit. Good luck.

sounds like your alternator isn't charging the battery.take alternator to auto parts store to have it tested.

I hav a 1995 88 w/ same problem. Key was worn out, Had Security system disabled.by installing a resistor to by pass Sec. System.Had it done for $35.00 Check locally for a starter/alternator shop in your area.

ignition coil not powering right

also some useful info
batterys are refurbed these days and sometimes an unlucky person can still get a dead cell battery several times even if the you bought brand new
i took mine back 4 times before i found a good one that kept its charge
dead cells dont show them selves very well on battery tests even though dead cell the tester would show good show dont think that there is something definatley wrong you could be in same ditch i was before with my batterys
alternator testers at some shops are not reliable enough i recommend a voltage tester to battery