Hi, I have an electrical issue that has been hard to pinpoint. I have replaced the battery, alternator, fuses, the windshield wiper drive motor, and most of the relays. The battery dies every night and I have to jump my car every day, and then it runs for about 45 min to an hour without the battery light and then it reappears. And my car dies again. Any suggestions as to what might be the cause?

-Shaiddai

 

Check all of your wiring and connectors for cracks in the insulation which could expose the wires. If they are grounding, you will have a short that will drain the battery in short order, pardon the pun...

 

Thank you, I've actually checked most of the wiring, but it is fully possible that I missed something. I'm thinking about doing a big 3 upgrade. Would that possibly solve my problem?

 

I'd check for parasitic draw: With the car off, disconnect the negative battery cable and put a test light in-line between the cable and the battery terminal. If it lights up you have a parasitic draw. Pull fuses 1 by 1 until you find the circuit that makes the test light go out. It's then a matter of finding the short in that circuit. Start with any aftermarket wiring first.

***DO NOT PULL ANY AIRBAG FUSES***