If I leave alternator plug in after turning the truck off the battery drains, I have changed the alternator and still drains battery

Asked by Jun 12, 2017 at 11:55 AM about the 1987 Ford F-150 XLT Standard Cab SB

Question type: Maintenance & Repair

1 Answer

19,840

You have a parasitic draw on the battery when the engine is off. It is easy enough to trace, just way to long to explain here. Google parasitic draw on auto battery and you will find many videos.

Your Answer

Ford F-150 Experts

  • #1
    OJ
    Reputation
    8,760
  • #2
    dandyoun
    Reputation
    4,480
  • #3
    tennisshoes
    Reputation
    3,010
View All

Related Models For Sale

Used GMC Sierra 1500
235 Great Deals out of 10,441 listings starting at $2,995
Used Ford F-250
5 listings
Used Ford Mustang
11 Great Deals out of 1,172 listings starting at $2,995

Used Cars For Sale

2018 Ford F-150 For Sale
240 listings starting at $35,799
2017 Ford F-150 For Sale
15 Great Deals out of 4,939 listings starting at $27,096
2016 Ford F-150 For Sale
56 Great Deals out of 770 listings starting at $19,995
2015 Ford F-150 For Sale
78 Great Deals out of 653 listings starting at $23,930
2014 Ford F-150 For Sale
87 Great Deals out of 522 listings starting at $11,995

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.