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
105

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.

5 out of 5 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.

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

  • CAR IS JERKING 29 answers

    MY car started jerking when i started it and while i was driving it when i push the gas it would not jerk as bad but it seemed like it did not want to pick up speed and when i stop it acts like it wan...

    2005 Nissan Sentra 1.8 S

    -

    Maintenance & Repair

  • 2000 Nissan Sentra Car stopped running 7 answers

    My car brake and battery light came on then when I turned on the lights the stereo would go off, turn the lights off then stereo would come back on. It was sputtering when I drove it then suddenly d...

    2000 Nissan Sentra GXE

    -

    Maintenance & Repair

  • 1990 Nissan SentraThe car has a strange surging idle.

    When I'm in "Drive" and stopped at a light, my car's idle will increase and drop back down over and over again. When the idle increases, the car tries to lunge forward then stops when the idle drops. ...

    1990 Nissan Sentra XE Coupe

    -

    Maintenance & Repair

  • My car doesn't accelerate when it is heated up 1 answer

    I have nissan sentra 1996 (fb 14). When I drive car in the morning looks fine. But when it is getting hot (both car and atmosphere) randomly it is felt that there is lack of fuel coming(there is e...

    1996 Nissan Sentra

    -

    Maintenance & Repair

  • battery light comes flashes on and off only in idle 1 answer

    The battery light flashes on intermittently only when I am in idle. When I rev the engine or drive the car the light goes out.

    2004 Nissan Maxima SE

    -

    Maintenance & Repair

Search Nissan Sentra Questions

Nissan Sentra Experts

#1 Doran Harney
Doran Harney
Reputation 850
#2 L_R
L_R
Reputation 760
#3 Tom Demyan
Tom Demyan
Reputation 540
View All

Related Models For Sale

Used Nissan Altima"
1,273 Great Deals out of 79,055 listings starting at $1,495
Used Honda Civic"
805 Great Deals out of 59,603 listings starting at $1,200
Used Toyota Corolla"
1,124 Great Deals out of 53,886 listings starting at $1,995
Used Honda Accord"
1,094 Great Deals out of 69,161 listings starting at $500
Used Toyota Camry"
1,550 Great Deals out of 78,754 listings starting at $1,200
Used Nissan Maxima"
416 Great Deals out of 16,168 listings starting at $2,250
Used Hyundai Elantra"
686 Great Deals out of 44,540 listings starting at $1,495
Used Volkswagen Jetta"
545 Great Deals out of 35,249 listings starting at $995
Used Hyundai Sonata"
819 Great Deals out of 63,595 listings starting at $1,595

Used Cars For Sale

2015 Nissan Sentra For Sale
19,093 listings starting at $14,495
2014 Nissan Sentra For Sale
125 Great Deals out of 4,598 listings starting at $10,991
2013 Nissan Sentra For Sale
111 Great Deals out of 2,943 listings starting at $9,590
2012 Nissan Sentra For Sale
142 Great Deals out of 3,201 listings starting at $6,490
2011 Nissan Sentra For Sale
34 Great Deals out of 920 listings starting at $5,500