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Voltage fluctuations, instantaneously.

(1999 Ford Ranger)
in Tarboro, NC on November 22, 2014
The past two days going to and from work , all is well but within 1 minute , my voltage meter drops to 'L' within 1 minute and i lose all accessories and begin to stall out . Twice upon stalling , voltage returned to normal . Battery tests good , clean tight terminals . Alternator putting out 14+ volts on vehicle testing . Please advise .........
Displaying 2 answers & 2 comments
Popular Answer
on November 22, 2014
Have seen some problems with this alternator connector;
Voltage Regulator Connector
$ 9.29 /ea
Part Number: VRC441
Product Line: NAPA Echlin Ignition Parts
IMPORTANT INFO: Female Type;w/ 3 Terminals;Gray
Possible intermittent high resistance connection!... Common issue!
on November 23, 2014
Where is this located so that i may check mine ?
on November 22, 2014
Alternator output seems good. I'd start with checking the belt, is it slipping and not turning the alternator all time.
on November 22, 2014
Checked belt ... No slippage . Tight grip fit !

Is it possible for an alternator to be ' on the fritz ' .... Going in and out if service before it completely dies ?

Could this be a voltage regulator issue ?
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