Having a major problem with surging lights on my 2001 Expedition. Replaced Alternator and Battery - still has the problem. Old alternator tested fine to boot. Voltage readings from Alternator are in the 15 - 15.23 range when the surging is happening.
Every light in the darn truck flickers/surges at the same rate regardless of RPM. I'm thinking there may be a short somewhere. I noticed that with the battery + cable disconnected there was still about 1.5-2 volts on the cable, I was able to trace the voltage back to the wire coming from the fuse box busbar. Any idea if this is normal, or what could be holding voltage in the fuse box? With a volt meter on it, it will drop down to zero volts after about 2 minutes.
The system completely freaked out tonight where the battery light was on and the dash volt meter was almost on high. The battery is reading over 13.2 volts right now with the truck off and everything disconnected!
Every light in the darn truck flickers/surges at the same rate regardless of RPM. I'm thinking there may be a short somewhere. I noticed that with the battery + cable disconnected there was still about 1.5-2 volts on the cable, I was able to trace the voltage back to the wire coming from the fuse box busbar. Any idea if this is normal, or what could be holding voltage in the fuse box? With a volt meter on it, it will drop down to zero volts after about 2 minutes.
The system completely freaked out tonight where the battery light was on and the dash volt meter was almost on high. The battery is reading over 13.2 volts right now with the truck off and everything disconnected!