My girlfriend's Edge is 2 years old, she drives it every day to college. She just went to the garage, opened the door and the light didn't come on. She turned the key, but nothing. She drove it home with no issues 4 hours prior. So, I hopped in, no interior lights lit up. I turned the key all the way to Start and the MPH gauge jumped. I figured the battery was the culprit, so I looked and the eye was green but heard a faint clicking noise like it was coming from underneath the battery. I hooked up the VOM and it said 6V across the terminals. Disconnected the battery from the car and it read 14V. Put a load on the battery and it was fine. Cleaned up the leads, reinstalled on battery, faint clicking noise under the battery and 6V across the terminals. Something is continuously running in the engine compartment (air pump?) drawing this battery down. Nothing in the car is plugged in at all and she didn't leave the light on whens he came home. Has anyone else experienced this?
FYI: I'm a pretty competent shadetree mechanic who runs 97vette.com to help other Vette owners work on their Vettes, but I can't figure out what's going on with my girlfriend's Edge.