Hello Everybody,

I have an automatic 2001 Lexus ES300 with 129,000 miles on it. I recently had to replace the air filter container and the hoses connecting to throttle body for the air intake due to there being multiple air leaks and the rubber being dry-rotten. My buddy and I put everything back together, made sure all the small hoses were connected and tightened, and all the electrical connectors were plugged back in. The car started great!

Then a couple hours later, I went to get some food. I turn the key and I hear a single click, then everything in the electrical died. I opened the hood to see if there were any loose grounds, I couldn't find anything. I double checked my work from before. That happens a couple more times and on the third attempt the car works perfectly fine. The next day it does it again. I jumpstarted it and the car turns on normally and runs good. I tried a different key, tested the battery, tested the alternator, tested the fuses, and tried to find any loose grounds or damaged wires, and nothing, all were good. I checked the battery terminals as well, there was a some corrosion on the terminals and the terminals were fully tightened and a little loose, but they were like this before (I'm going to replace them eventually). I know there's a drain somewhere, but I can't find it. This only started happening after the above-mentioned job. Any help or ideas would be appreciated!