2002 mercury grand marquis.
I have burned out 2 reman alternators in 2 days. When driving one would put out 17 volts the other puts out about 13.5 but wont charge a new battery, they both would screech like they are dying and were remans from 2 different manufacturers. I figured a short somewhere could be causing this.
After removing fuses I noticed that when I remove the fuse in my power distribution box that is marked "Generator, Starter control relay, fuses 15 and 18" the alternator will run much quieter, the load on it is quite less. Fuse 15 is my ABS and removing this does not change the noise I can hear of how hard the alternator is running. There is no fuse 18.
Maybe I just had bad luck with reman alternators but I think I have a short in my starter control relay. The car starts fine when I have this fuse in but the alternator is obviously under a much higher load with it.
Where is the starter control relay at? It is not inside my distribution box so I am wondering if it is mounted on the firewall somewhere?
Saturday, August 13th, 2011 AT 4:46 PM