What is the black goo leaking onto my alternator?

Asked by Aug 12, 2012 at 02:32 AM about the 1997 Nissan Sentra XE

Question type: Maintenance & Repair

I have a 97 nissan sentra and here is this black oily substance leaking onto my alternator. I can't figure out where it's
coming from or what it is.

1 Answer

565

When you say "goo" it makes me think of a somewhat thick substance (not like oil). I don't know the engine diagram right off, but it could be power steering fluid (a little thicker than oil). You may have a power steering line loose. Now, you could notice that the vehicle may be harder to turn at speed or at stop, but the leak may be small so you don't notice it. Or it may not be that. It might also be brake fluid (much thicker than oil). You could have a brake line loose (that you may or may not notice) or the brake lines may have air in them and may need to be bled (but you'd notice that (mushy pedal feel, longer stop distance). I'd start w/ those two areas. Your owner's manual should give you a diagram of the engine and you could see what is close to the alternator (power steering lines/resovoir or brake lines, brake resovior, brake master cylinder). Hope this helps.

1 people found this helpful.

Your Answer:

Nissan Sentra Experts

  • #1
    L_R
    Reputation
    1,510
  • #2
    Doran Harney
    Reputation
    1,480
  • #3
    Tom Demyan
    Reputation
    1,220
View All

Related Models For Sale

Used Nissan Altima
900 Great Deals out of 54,780 listings starting at $1,300
Used Toyota Corolla
681 Great Deals out of 60,661 listings starting at $1,499
Used Honda Civic
474 Great Deals out of 40,212 listings starting at $995
Used Toyota Camry
923 Great Deals out of 69,971 listings starting at $1,137
Used Honda Accord
681 Great Deals out of 98,452 listings starting at $750
Used Hyundai Elantra
452 Great Deals out of 46,079 listings starting at $1,499
Used Nissan Maxima
268 Great Deals out of 16,949 listings starting at $1,988
Used Ford Focus
540 Great Deals out of 68,999 listings starting at $1,000
Used Hyundai Sonata
538 Great Deals out of 46,218 listings starting at $1,500
Used Volkswagen Jetta
513 Great Deals out of 29,639 listings starting at $1,100
Used Chevrolet Malibu
617 Great Deals out of 52,606 listings starting at $1,300

Used Cars For Sale

2018 Nissan Sentra For Sale
3 Great Deals out of 28,615 listings starting at $11,900
2017 Nissan Sentra For Sale
116 Great Deals out of 5,230 listings starting at $9,799
2016 Nissan Sentra For Sale
92 Great Deals out of 2,962 listings starting at $7,595
2015 Nissan Sentra For Sale
140 Great Deals out of 3,643 listings starting at $5,995
2014 Nissan Sentra For Sale
83 Great Deals out of 2,170 listings starting at $4,600

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.