Walnut Creek Auto Repair

A Range Rover That Starts on Monday and Is Dead by Friday   The car arrives on a flatbed, and the story that comes with it barely changes: it ran perfectly on the weekend, sat in a Walnut Creek driveway for four days, and then would not even light the dash. The battery tests fine once it has been charged. Nothing on the dash warned anybody. Something on board is quietly drinking current while the car is parked, and on a Land Rover that is rarely the battery's fault. A parked car is never completely switched off Lock the doors and the electronics do not all stop. Alarm sensors, the telematics module, the keyless entry receivers, and the body control module stay partly awake, then hand off to a low-power state once the car decides nobody is coming back. On a healthy modern European car that settled draw is small — well under 50 milliamps, which a good battery can carry for weeks. A parasitic draw is what happens when one of those modules never gets the message. It stay ... read more