Battery or Alternator?

Asked by Jun 23, 2018 at 01:27 PM about the 2002 Ford F-150

Question type: Maintenance & Repair

My 2002 Ford F-150 all of a sudden wont start. I can jump it off but wont run
long before it dies. I jumped it off and disconnected the battery, it died. In the
older days this was a valid test to determine if battery or alternator was bad. My
results indicate bad alternator. Is this still a valid fault identification test?

1 Answer

30,090

Bad idea doing that with vehicles that have computers can short out the whole system.

Your Answer:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    15,270
  • #2
    dandyoun
    Reputation
    5,670
  • #3
    tennisshoes
    Reputation
    5,350
View All

Related Models For Sale

Used GMC Sierra 1500
55 Great Deals out of 8,925 listings starting at $3,900
Used Toyota Tundra
23 Great Deals out of 1,668 listings starting at $5,500

Used Cars for Sale

2019 Ford F-150 For Sale
2,199 listings starting at $9,170
2018 Ford F-150 For Sale
10 Great Deals out of 3,431 listings starting at $24,699
2017 Ford F-150 For Sale
18 Great Deals out of 496 listings starting at $22,495
2016 Ford F-150 For Sale
32 Great Deals out of 910 listings starting at $18,900
2015 Ford F-150 For Sale
26 Great Deals out of 449 listings starting at $15,999

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. Content will be removed if CarGurus becomes aware that it violates our policies.