Opinions about Intermittent Battery Drain?

[misha]

You said...
...I have to use a key to unlock and lock it, but it locks all doors, I'm pretty sure that's normal across all trims. My question about the glove box light and the fuel door lock, do they still receive power even after a fuse has been pulled?

About fuel filler door....you don't need to have keyless entry for it.It's the part of central locking system.Meaning...when you lock the doors(no matter is it with a key or a remote)fuel filler door locks along with the doors.

About recieving power to the specific electric part when fuse for it has been pulled....it's not possible!

Since you don't have anything aftermarket in your car,there are several things that can cause parasitic drain in these cars:
-glove box light
-fuel filler door lock
-main relay for fuel injection(the grey one which is located at right side of the radiator fan carrier when you look towards the car when you open the hood)when it gets stucked
-faulty diode inside of the alternator
-sticky relay

I had a parasitic drain in may car for many years untill i finnaly found out that it was self power horn for aftermarket alarm system.Replaced a self powering alarm horn and everything is ok now.

Good luck!

[shiloh51933]

Shiloh here,

How yah doing,


I recently had parasitic drain killing my battery after bout a week or so, then I would jump the battery let it idle
for about 15-20 minutes and shut her down for the night. Next morning would just barely crank over or die as I
tried to crank over. I was going crazy checking everything with DMM/test light and could not find a drain big enough
to kill battery over night or within a week. After 2 weeks of tearing chassis electrical/engine electrical systems I
could find nothing that looked bad or that was big drain to kill battery. My alternator was charging properly enough
to be considered good and battery was new. Finally I decided the alternator/regulator had to have bad diode or
something so I removed from my 96 850GLT/97R wheels. I brought it to my auto parts shop of choice and had them
test it to find just what I thought, bad diode cause alternator was sending current and drawing current when off.
If your DMM has AC capabilities you might want to check for alternating current. Fix was to buy new alternator
since I couldn't rebuild at this point. These cars are great looking, drive excellent, very safe, powerful 4 five cylinder
and have a crazy amount of electrical systems 4 there era. I was told this b 4 buying mine but couldn't pass up the
great deal I got on mine and she's a second car 4 me. Good wrenching!!