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david craig
david craig, Auto Mechanic
Category: Cadillac
Satisfied Customers: 2542
Experience:  owner/mechanic at 3D Automotive
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Voltage starts at 14.2, slowly drops to 13, then it goes

Customer Question

Voltage starts at 14.2, slowly drops to 13, then it goes into power saving mode?
Submitted: 10 months ago.
Category: Cadillac
Expert:  david craig replied 10 months ago.

Hi Im David. Take a voltage reading at the alternator, if it does the same thing, then its bad/going bad

Expert:  david craig replied 9 months ago.

any update?

Customer: replied 9 months ago.
The alternator seems to be working it always starts out at 14.2 V then drops what bothers me is the battery saving mode goes on at about 13.2 V which should be OK ?
Expert:  david craig replied 9 months ago.

yes, thats when its supposed to go on, but in no way should the alternator vary from 14.2. it should always stay there

Customer: replied 9 months ago.
The car has been driven over 300 miles with this condition and the battery never goes dead so the alternator must be working?
Expert:  david craig replied 9 months ago.

the alternator if measure at the alternator starts out at 14.2 and slowly goes down, then it is not working correctly

Expert:  david craig replied 9 months ago.

do you still need assistance?

Expert:  david craig replied 9 months ago.

hello????????

Expert:  david craig replied 9 months ago.

please rate my service..thank you

Customer: replied 9 months ago.
Sorry,been out of town. Now it goes into battery saver mode with voltage at 14.2?????
Expert:  david craig replied 9 months ago.

ok...good, give me a few

Customer: replied 9 months ago.
Just got back from vacation started the car it immediately went into power saving mode with 14.3 V indicated on the voltmeter ?
Expert:  david craig replied 9 months ago.

ok let me look a little further into it