Apologies if this has been asked and answered before.

My 83' XJ6 has an electrical issue where the battery will discharge even when the car is off. Hoping to install a kill switch. Has anyone had this done on their car? Does it correct the issue, and any idea what kill switch I should purchase? Thanks in advance.

 

Plenty of them on the market look at a summit racing catalog or jegs. What have you tried already to find the draw though? May be a simple as trunk light stuck on, give us some details before you go letting the smoke of the wires....

 

To be a bit more specific I thinking you're looking for a battery disconnect switch rather than a kill switch.

Cheers
DD

 

Ditto:


1. Most racing cars have one as required. Mounted in a prescribed position externally. In the event of run on after a crash, the emergency crew can "kill" the engine.


2. EFI cars have something similar. An inertia switch> In the event of a hard impact, it "kills" the fuel pump. Fuel escaping at circa 90 PSI is extremely dangerous.


3. An on/off switch on one of the battery posts is a "false fix". It merely shuts down all the electrical circuits in the car. More of a problem in the sophisticated computer controlled cars. In these, only the radio presets will be lost.


4. In the interim, save the cost of a "kill switch". Merely. attach a wrench in he engine bay that fits the + cable. Undo the cable, when not driving.


5. Search the archives here for a diagnostic path to find the "leak". The fix. Boot lamp, after market "anti theft" device. or alternator diode.


6. In my view the disconnects are crude and wont to add in wanted resistance.


Carl


Carl

 

Problem fixed - bought a new battery and that was all.

 

Thanks! The issue wasn’t a battery drain, rather a bad battery. Usually disconnected the poles when done driving, but the battery still drained despite doing this. With new battery, car starts briskly and there are no issues.