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

455

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 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Nissan Sentra Questions

Nissan Sentra Experts

#1 L_R
L_R
Reputation 1,270
#2 Doran Harney
Doran Harney
Reputation 1,240
#3 Tom Demyan
Tom Demyan
Reputation 970
View All

Related Models For Sale

Used Nissan Altima
852 Great Deals out of 78,714 listings starting at $1,677
Used Toyota Corolla
663 Great Deals out of 71,491 listings starting at $600
Used Honda Civic
492 Great Deals out of 87,972 listings starting at $1,499
Used Toyota Camry
831 Great Deals out of 89,154 listings starting at $950
Used Honda Accord
719 Great Deals out of 87,017 listings starting at $1,250
Used Nissan Maxima
276 Great Deals out of 26,224 listings starting at $1,990
Used Hyundai Elantra
467 Great Deals out of 51,988 listings starting at $995
Used Ford Focus
540 Great Deals out of 56,093 listings starting at $800
Used Hyundai Sonata
615 Great Deals out of 51,474 listings starting at $1,495
Used Volkswagen Jetta
368 Great Deals out of 36,897 listings starting at $995
Used Chevrolet Malibu
827 Great Deals out of 81,055 listings starting at $995

Used Cars For Sale

2017 Nissan Sentra For Sale
37,151 listings starting at $11,995
2016 Nissan Sentra For Sale
47 Great Deals out of 3,578 listings starting at $9,700
2015 Nissan Sentra For Sale
145 Great Deals out of 4,823 listings starting at $7,646
2014 Nissan Sentra For Sale
105 Great Deals out of 3,719 listings starting at $6,850
2013 Nissan Sentra For Sale
72 Great Deals out of 2,319 listings starting at $5,795