Battery light comes on when car stopped and idling.
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 answered 7 years ago
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.
trip65 answered 4 years ago
see if you can raise the idle a little bit, the engine isn't spinning fast enough.
Your Answer
Related Questions
-
Gas pedal stopped working, battery died 2 answers
Yesterday I forgot to replace the cap after adding oil into my engine. Drove about five miles that way before the cap was replaced. There was oil all over the engine, my dad applied engine degreaser...
2004 Nissan Sentra 1.8
-
Maintenance & Repair
-
CAR IS JERKING 39 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
-
why did my car turn off while waiting for a green light? 17 answers
I was waiting stopped at a red light and suddenly my car turned off.. it turned right on again but I noticed that my rpm while having the car on drive and foot on bread the idle rpm went below the 1 ...
2003 Nissan Sentra GXE
-
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
-
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
Shortcuts
Search Nissan Sentra Questions
Nissan Sentra Experts
| #1 |
|
L_R
Reputation
1,300
|
| #2 |
|
Doran Harney
Reputation
1,260
|
| #3 |
|
Tom Demyan
Reputation
980
|
Related Models For Sale
Used Cars For Sale
Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.