Why wont my car turn on?

Asked by Mar 03, 2015 at 02:23 PM about the 2001 Volkswagen Jetta GLS 1.8T

Question type: Maintenance & Repair

It cranks, but nothing. I recently replaced the alternator because the car kept on turning
off while I was driving. It had problems with the idle, but it stopped 2 weeks after I
replaced the alternator. We think it may be an air control valve.

1 Answer

10,405

i don't know why replacing the alternator would fix this issue if it was not a voltage issue. But commanly starting issues is caused by either an air flow issue, fuel or spark. Check for spark by removing hte plugs and cranking hte engine while the plug is pluged in and next to a metal surface.(best done in the dark) after this smell your cyclinders for gas before replacing the plug cause there will undoubtedly be fuel in the cyclinder from cranking it. If you can't smeel any fuel you have a fuel issue. if not move on to air. Check the MAF (mass air flow sensor) it would be a good idea to use MAF cleaner on this to clean it if you have not done so in the last year or so.

Your Answer

Volkswagen Jetta Experts

  • #1
    Goodwrench707
    Reputation
    2,430
  • #2
    Deathjam4
    Reputation
    1,900
  • #3
    Scott Sr.
    Reputation
    1,470
View All

Related Models For Sale

Used Volkswagen Passat
386 Great Deals out of 20,625 listings starting at $1,495
Used Honda Civic
814 Great Deals out of 72,402 listings starting at $1,000
Used Volkswagen GTI
130 Great Deals out of 8,548 listings starting at $2,400
Used Honda Accord
1,063 Great Deals out of 60,933 listings starting at $999
Used Volkswagen Golf
102 Great Deals out of 5,059 listings starting at $1,950
Used BMW 3 Series
1,122 Great Deals out of 32,992 listings starting at $1,000
Used Toyota Corolla
901 Great Deals out of 56,951 listings starting at $1,099
Used Toyota Camry
1,055 Great Deals out of 70,427 listings starting at $295
Used Audi A4
282 Great Deals out of 11,293 listings starting at $1,500
Used Nissan Altima
1,027 Great Deals out of 74,834 listings starting at $1,200
Used Ford Focus
725 Great Deals out of 52,700 listings starting at $999
Used Volkswagen Beetle
217 Great Deals out of 7,606 listings starting at $1,000

Used Cars For Sale

2017 Volkswagen Jetta For Sale
7 Great Deals out of 20,235 listings starting at $9,877
2016 Volkswagen Jetta For Sale
58 Great Deals out of 1,751 listings starting at $8,600
2015 Volkswagen Jetta For Sale
137 Great Deals out of 3,088 listings starting at $6,490
2014 Volkswagen Jetta For Sale
176 Great Deals out of 4,455 listings starting at $4,999
2013 Volkswagen Jetta For Sale
45 Great Deals out of 1,401 listings starting at $4,999

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.