Volvo XC70 This wagon/SUV crossover offers the capabilities of an SUV without SUV size.

2000 V70 XC and Charging Issue

  #1  
Old 11-01-2010, 10:20 AM
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Default 2000 V70 XC and Charging Issue

I have a 2000 V70XC with 225,000 miles. I just had the engine replaced with a used motor. The ABS light was on and the speedo and odometer did not work when I picked up the car. Mechanic did not know why. I needed the car so I picked it up and started driving it. I found the battery was going dead after a few days. I had the "old" alternator put in the car but the battery is only reading 12volts when running. I consulted another shop and they told me it was my ABS control module. The ground for the alternator is somehow connected to the control module. I had the ABS control module rebuilt and my speedometer, odometer now work fine...ABS light and Check Engine lights are off. Car is still killing batteries. Anyone know why I am only getting 12 volts out of my alternator. Thanks for responding!

Tirewall
 
  #2  
Old 11-05-2010, 03:44 PM
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Default Really??????

No ideas? Thanks for viewing!
 
  #3  
Old 11-14-2010, 07:50 AM
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Location: Vermont
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Default

Look for a ground wire not hooked up. The missing ground means the circuit that' missing it is finding another route. That route remains "on" while the car is off, draining the battery.
 
  #4  
Old 11-26-2010, 12:23 PM
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Default Charging Issue

Mechanic resolved the problem...the alternator was only putting out 12volts because a wire on the starter looked tight but was not...it is somehow interconnected with the alternator. Getting plenty of voltage now!
 
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