I am trying to check an alternator on a 2002 Volkswagen Jetta. If I take the battery cables off battery while car is running should the car still run if alternator is bad?

Tina Dear

Asked by Oct 30, 2014 at 07:04 PM about the 2002 Volkswagen Jetta

Question type: Maintenance & Repair

2 Answers

Michael Williams

After car is running, remove the "Positive" cable...Car runs=Good Alt....No Run=Bad

Tina Dear

Ok we did that and it ran but he also unplugged something from alternator with cables still undone and the car still ran. Can you please help tell me what might be the problem Thank you

Your Answer

Add photo

Related Questions

  • '02 Jetta won't start....security system issue?? 44 answers

    My son just purchased a '02 Jetta. After trying to install a subwoofer system yesterday the car will not start. Car cranks, lights work etc but the car won't fire. Is it possible he tripped the securi...

    2002 Volkswagen Jetta


    Maintenance & Repair

  • My battery keeps draining and my car won't start in the morning. 11 answers

    I've had my car into the dealership and they say the battery and alternator are fine. They also said the parasitic draw test showed nothing. I'm suspicious of the radio. It died about 10 weeks ag...

    2010 Volkswagen Jetta TDI


    Maintenance & Repair

  • 2010 Jetta Broken Stereo 734 answers

    When I turned on my 2010 Jetta TDI yesterday the stereo system did not turn on. Touch screen is black and doesn't respond at all. I have checked the fuse under the hood and behind the radio, but t...

    2010 Volkswagen Jetta TDI


    Maintenance & Repair

  • 2002 jetta fans run after ignition is off 5 answers

    i have a vw jetta and the fans stay on even after the ignition is off and key is out, will run until the battery is dead. I have replaced the coolant sensor and the computer sensor on the overhead coo...

    2002 Volkswagen Jetta GL TDI


    Maintenance & Repair

  • What is wrong with my car? 7 answers

    Hi I have a jetta Volkswagen 2000 is been doing good but this past days sometimes when i try to turn it on it wont turn on and i have to wait a little bit then try again and it turns on. Another ...

    2000 Volkswagen Jetta


    Car Customization

Search Volkswagen Jetta Questions

Volkswagen Jetta Experts

#1 FordNut
Reputation 2,110
#2 Goodwrench707
Reputation 1,870
#3 Tom Demyan
Tom Demyan
Reputation 1,270
View All

Related Models For Sale

Used Volkswagen Passat"
270 Great Deals out of 22,343 listings starting at $1,074
Used Volkswagen GTI"
102 Great Deals out of 6,093 listings starting at $2,900
Used Honda Civic"
1,183 Great Deals out of 58,586 listings starting at $1,295
Used Volkswagen Golf"
38 Great Deals out of 2,657 listings starting at $2,250
Used Honda Accord"
1,315 Great Deals out of 78,660 listings starting at $1,395
Used Toyota Corolla"
1,434 Great Deals out of 67,338 listings starting at $1,295
Used BMW 3 Series"
1,618 Great Deals out of 39,936 listings starting at $1,500
Used Audi A4"
342 Great Deals out of 13,069 listings starting at $1,500
Used Toyota Camry"
1,653 Great Deals out of 98,470 listings starting at $895
Used Nissan Altima"
1,483 Great Deals out of 87,903 listings starting at $1,195
Used Volkswagen Beetle"
250 Great Deals out of 9,197 listings starting at $1,500
Used Ford Focus"
1,214 Great Deals out of 57,459 listings starting at $1,495

Used Cars For Sale

2017 Volkswagen Jetta For Sale
12,702 listings starting at $13,099
2016 Volkswagen Jetta For Sale
26 Great Deals out of 2,484 listings starting at $11,749
2015 Volkswagen Jetta For Sale
102 Great Deals out of 3,927 listings starting at $9,700
2014 Volkswagen Jetta For Sale
119 Great Deals out of 2,653 listings starting at $5,977
2013 Volkswagen Jetta For Sale
233 Great Deals out of 3,939 listings starting at $3,000