FOR the past 2 weeks,something has been draining my battery nothing is left on ,I try turning off my alarm unplug my stereo nothing solved the problem,in the morning on first crank the car doesn,t start,if I crank a secong time it starts,also when I open my door in the morning the lights insisde are not bright as usual,after the car starts up they light up very bright.
THE BATTERY IS GOOD.

can a bad starter or a bad starter relay
or a bad ignition coil cause that kind of problem.
or a faulty fuel pump and relay.
btw there is a whinning noise coming from where the fuel pump is located,is that a sign of a pump going bad?

 

The lights get VERY bright? Alternator could be overcharging, and that will kill a battery in no time. Do you notice any kind of sulfur/ rotten egg smell? if so, your battery is being overcharged. I just dealt with this exact same issue on my 850. As for your battery being good, when was it checked last? after this stuff started happening, or before? if it was before, get it checked again- I've seen batteries go from good to bad overnight. Drive the whole car to Advance or Auto Zone, and have them wheel out their on- car battery/ starter/ alternator tester, and test all three. If the alternator is putting out more than 15 volts, it's overcharging. Good luck!

 

thanks for ur response again Carrots
what I meant was that after the car start the inside lights turn on as bright as they should be, where as when I open my car door they are very dimm until the car starts.
and no,all my connections are good no corrosion whatsoever.

i guess I,ll drive to autozone tomorrow.

 

All solved,bad starter was killing my batteries.
replaced it and all is great.

Thanks carrots.