steelestang

Well I dont know one day I could drive over an hour without it happening then all of a sudden 18v and check guages light comes on. Could a wire be bad.

Pcm voltage regulator went out in my truck so I put in an older dodge external v. regulator. Works great at 14.6v until you drive about 5 miles then the check gauges light comes on and voltage reads pegged past 18v. I take readings at fuse block where alternator charging wire is and it is reading 14.6v. what the hell is going on? Voltage regulator is hooked up blue wire 12v switched ignition to cigarette lighter and green is to the plug on alternator. Even put on another ground from vr to ground on battery. Anyone have any suggestions?

I have an 01 qclb ctd 4x4 that needs a pcm and would like to know what years are compatible. Would a 2000 or maybe an 02 work on an 01. It will be flashed to match my vin. Just need to know if it will work....Thanks guys.....