Battery light comes on when car stopped and idling.

LewisArthur
0

Asked by LewisArthur Oct 10, 2009 at 07:59 PM about the 1994 Nissan Sentra XE

Question type: Maintenance & Repair

I have a 1994 Nissan Sentra (automatic with 77,000 km.)and just replaced the battery and alternator this week.  Problem is, when I'm stopped and the motor is running, the red warning battery light comes on.  Once I accelerate, it goes off.  What could be the problem?

2 Answers

Alan Mejia
85

Voltage Regulator. I don't know what it looks like on an 94 Sentra, but you should replace that. They are not too expensive. If you have a voltmeter you can test it. Check the battery voltage when the engine is not running. The voltage should be a little over 12 volts dc. Start the engine. If it isn't real hot outside, the voltage should go up to between 13 and 14 give or take. If it stays close to 12 your voltage regulator is bad. If that doesn't fix it then maybe you have a bad connection in the charging system. Check the following for corrosion and or damage: 1) alternator positive to battery positive, 2) battery negative to chassis, and 3) engine ground to chassis. If none of that works, well, brand new alternators have been known to be bad right out of the box.

3 out of 3 people think this is helpful.
trip65
Not Active

see if you can raise the idle a little bit, the engine isn't spinning fast enough.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Nissan Sentra Questions

Nissan Sentra Experts

#1 Doran Harney
Doran Harney
Reputation 560
#2 L_R
L_R
Reputation 390
#2 Tom Demyan
Tom Demyan
Reputation 390
View All

Related Models For Sale

Used Nissan Altima"
1,893 Great Deals out of 77,180 listings starting at $1,000
Used Toyota Corolla"
1,427 Great Deals out of 51,124 listings starting at $995
Used Honda Civic"
939 Great Deals out of 53,991 listings starting at $1,900
Used Honda Accord"
1,532 Great Deals out of 65,024 listings starting at $950
Used Toyota Camry"
1,983 Great Deals out of 74,052 listings starting at $1,250
Used Nissan Maxima"
704 Great Deals out of 20,064 listings starting at $999
Used Hyundai Elantra"
910 Great Deals out of 45,267 listings starting at $999
Used Volkswagen Jetta"
1,180 Great Deals out of 39,093 listings starting at $1,595
Used Hyundai Sonata"
1,231 Great Deals out of 52,484 listings starting at $1,000

Used Cars For Sale

2014 Nissan Sentra For Sale
3 Great Deals out of 18,669 listings starting at $14,299
2013 Nissan Sentra For Sale
174 Great Deals out of 2,920 listings starting at $10,999
2012 Nissan Sentra For Sale
223 Great Deals out of 3,516 listings starting at $8,905
2011 Nissan Sentra For Sale
146 Great Deals out of 2,229 listings starting at $7,988
2010 Nissan Sentra For Sale
52 Great Deals out of 820 listings starting at $6,981