2004 Nissan Xterra Nissan charging system

ROBERTBEALL

MEMBER
2004 NISSAN XTERRA
4.0L
V6
4WD
AUTOMATIC
120,000 MILES

In most 12 volt charging systems the charge rate is 13.5v to 14.5v the one I am working on is charging at a rate in excess of 17v question, Is the voltage regulator in the alternator and can it be replaced? This is also causing the batt lamp in the cluster to remain on

3 Replies

MHPAUTOS

MECHANIC
31,937 POSTS

The voltage reg can be replaced but with the miles on your unit I would recommend getting the unit o/hauled or replaced as there will be other internal components due for renewal as well and often a new alternator is the cheaper option in the long run.

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Monday, September 21st, 2015 AT 2:36 PM

ROBERTBEALL

MEMBER
11 POSTS

I assumed that would be your answer, the unit looks really rough the cost of a replacement is $ 243.00 which is the best way to go. Thank you.

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Monday, September 21st, 2015 AT 5:54 PM

MHPAUTOS

MECHANIC
31,937 POSTS

If it was mine I would go with the new unit, yes it will cost more up front but in the long term it will be a cheaper option, a new alt will last many rears, if you do a re build you may get 2-3 at best then you are back to where you are now.

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Tuesday, September 22nd, 2015 AT 12:49 AM