This problem started three days ago.
I go and start the truck (can't remember if I attempted to use the remote starter or just the key) and the truck is acting like the battery is drained. When I say "drained", I'm talking there's enough juice to DIMLY turn on some idiot lights and you can BARELY hear some relay clicking somewhere (I believe it was coming from the remote starter?). I popped the hood and was about to connect my jumper cables to my truck, when the radio turned on (the key was in the ignition in the ON position). I decided to skip the jumper cables and try the key again. It started up with no problem.
It happened once the first day, once yesterday, and four times today. Today, the truck actually lost all electrical power WHILE I was on the highway going almost 70mph. When I decided to slowly brake and pull over to the emergency lane, I noticed the power came back. I put it in neutral while still coasting at around 50 and it started up fine.
The second time it happened today, I had just stopped and turned off the truck. I opened the door and hit the lock button, but nothing happened. When I noticed the loss of power, I popped the hood and was about to connect the negative terminal to the chassis to determine if the problem was a bad ground, but then the truck turned on all by itself (I had left the key and remote start FOB inside the truck while I was outside).
This lead me to believe the remote start module was damaged, so I flipped the valet switch to disable the remote starter. It still happened twice with the remote starter disabled.
Details on the truck:
2003 4.0L SOHC
Battery recently replaced with new battery about 4 months ago.
Hella lights installed behind grill, but can only be turned on while the key is in the ignition in the ON position (I tapped into the power wire going to the radio).
Avistart remote starter (I believe it's model 4103)
Can anyone shed any help? I'm racking my brain trying to figure out what it could be:
- Bad battery, but Autozone already tested the battery
- Bad alternator, but that wouldn't cause this, right?
- Bad starter, but that would only affect starting... not overall power, right?
- Bad ground, but which? I've heard there are 8 grounds on our trucks.