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64GTHawk
05-31-2014, 02:38 PM
My battery goes flat if I leave it connected. I've checked for current through lamps, fuses, etc., but haven't been able to pinpoint the cause of the drain. So, I now disconnect the battery every time I put the car away.

I'm now wondering if my heat indicator (water temperature sender) could be the culprit. Any thoughts on this? (BTW, coolant is smoking off the top rear of the driver's side valve cover; so I'm hoping that replacing the heat indicator might cure both problems.)

41 Frank
05-31-2014, 04:02 PM
The temp sender would not have any current going to it when the ignition switch is in the off position, so unlikely that it is your problem. I would look for a glove box light, under hood light or trunk light staying on first, if your car is equipped with any of those.

R_David
05-31-2014, 04:05 PM
For my 1961 Hawk it was a failing brake switch. The switch was still working, but when they were off there was still slight current going through the brake lights. Eventually the brake switch failed completely, I replaced it and no more battery problems.

Gunslinger
05-31-2014, 06:21 PM
I've had the brake light switch problem as well.

Stan.Gundry
05-31-2014, 09:59 PM
I had the same problem with my 63 Avanti a couple of years ago. Actually, it went on for 3 or 4 years before I discovered the cause of the problem. I was able to isolate a very slight trickle drain that went away when the fuse for that circuit was removed. It was so slight it was barely measureable. For me it was the interior light switch on the door post--the button that when pushed in turns off the light that comes on when the door opens. After examining nearly everything else in that circuit, decided I should remove those switches and disassemble them. One of them was so corroded that the corrosion bridged the gap that was supposed to create an open circuit when the door was closed. This allowed for a very slight drain--not enough to light the courtesy light bulbs, but enough of a drain to draw the battery way down after about 10 days. After cleaning both switches, no more problem.

RadioRoy
05-31-2014, 10:20 PM
If you have installed an aftermarket radio, most of them have an "always on" connection to keep the push button settings alive. They will drain the battery if the car is not driven every few days.

FlatheadGeo
06-01-2014, 09:08 AM
"For me it was the interior light switch on the door post--the button that when pushed in turns off the light that comes on when the door opens." I had the same problem in my '57 Champion. Removed the dome light and problem cleared up. I know, no dome light! Car is rarely driven.

64GTHawk
06-01-2014, 09:32 AM
I had a similar problem in December and found that my brakes lights were very slightly lit. So I replaced i the brake light switch. I thought I had solved the problem. I hadn't looked at the interior light or glove box light. I'll check them out.

Thanks.

GinettaG12P
06-01-2014, 11:33 AM
Where is the brake light switch?

E. Davis
06-01-2014, 12:14 PM
Electric winding clock?? Had to put an off/on switch on mine.

studebaker-R2-4-me
06-01-2014, 12:19 PM
Electric winding clock?? Had to put an off/on switch on mine.


Good Idea.


Allen

Skip Lackie
06-01-2014, 02:35 PM
Where is the brake light switch?
Need to know year and model to answer specifically. It's tapped into the hydraulic brake system somewhere, either in the master cylinder itself or into a T built into the brake lines. It probably has two red wires connected to it.

GinettaG12P
06-01-2014, 04:54 PM
1959 Silver Hawk. It is not at the master cylinder.

altair
06-04-2014, 10:25 AM
My battery goes flat if I leave it connected. I've checked for current through lamps, fuses, etc., but haven't been able to pinpoint the cause of the drain. So, I now disconnect the battery every time I put the car away.

I'm now wondering if my heat indicator (water temperature sender) could be the culprit. Any thoughts on this? (BTW, coolant is smoking off the top rear of the driver's side valve cover; so I'm hoping that replacing the heat indicator might cure both problems.)
Do a night time walkaround for any teltale lights on. I had a starter that dusted up inside and went to ground also check the horn relay I had both of the conditions that killed the battery.

Studebaker1962
06-04-2014, 10:49 AM
I put a water proof disconnect in the left side fender well. Used Ancor wire and fittings from West Marine. Also an on-board trickle charger with a fully "Off" state when charged. Just like a block heater in Alaska with a pig tail plug under the front bumper.

StudeRich
06-04-2014, 10:54 AM
1959 Silver Hawk. It is not at the master cylinder.

Your Brake Light switch is on the Brass "T" on the Left Frame Rail near the Exhaust manifold.

64GTHawk
06-14-2014, 08:16 AM
The drain turned out to be from the dome light circuit. Thanks for your help.