2000 Mercury Cougar 6 cyl Two Wheel Drive Automatic 71000 miles
I just replaced my alt. And I am experiencing the exact same problems. The headlamps and alt. Light on the dash flickers. The a/c blower motor and engine also surges. Prior to replacing the alt. I fully charged my battery. After charging it, I load tested it and it was good. With the new alt. On and no load, the alt. Shows 14V. As soon as I put a load on it, the voltage starts surging anywhere fron 12V to 16V. I disconnected the main red wire from the alt and installed a temporary wire from alt. To batt. And problem still exists. If I take the alt out of the loop by completely disconnecting the wires from it, the problems go away.I think I may have another bad alt. Although it is new. I'm looking for some confirmation on this or suggestions of what I may have missed. Thanks
have the same problem?
Monday, August 10th, 2009 AT 7:25 PM