Took my car to the dealer for a new battery. They performed a battery and charging system test. I have no warning dash lights or signs of a problem and drove it 900 miles since installing new battery.
Yet the dealer wants to sell me a new alternator. Service adviser wrote: "battery failed load test but also found excess ripple detected. Replaced battery as per customer concern to retest for bad alternator. Excess ripple is still present. Vehicle has proper charging voltage but excess ripple can cause alternator to overcharge battery and damage cell. Alternator needs replaced."
Does that make sense?
Yet the dealer wants to sell me a new alternator. Service adviser wrote: "battery failed load test but also found excess ripple detected. Replaced battery as per customer concern to retest for bad alternator. Excess ripple is still present. Vehicle has proper charging voltage but excess ripple can cause alternator to overcharge battery and damage cell. Alternator needs replaced."
Does that make sense?
May 28, 2014 at 7:53 AM