Battery or alternator

10

Asked by May 29, 2016 at 10:53 PM about the 2001 Ford F-150 Lariat Crew Cab SB

Question type: Maintenance & Repair

Dash lights turned off then started losing power till
it died. Got a jump after removing the cables truck
wouldn't stay running. Check battery it wasn't good
so put a new one in. Working now but how do I
know if it was the battery or something else draining
it?

4 Answers

20

Have your charging system checked. Normally, some of the parts stores like Advance auto will do this for free, call they and verify first. Your Alternator should be putting out 14.4 to 14.2 volts. If it is over that, say 16 or 17, will eventually fry battery. Under 13 will prob bot keep your battery charged. I usually replace if it is below 13.5. Tensioner could be locked up, and not reacting against the belt as well. Could be bad negative ground.Doing the voltage output test is the first step.

2 people found this helpful.
22,870

Classic story of when an alternator goes out and vehicle finally dies when the battery is drained. Remove alternator, bring to autozone, have checked, probably bad. replace is necessary.

10

Since my last post (yesterday) the truck died same thing as yesterday lost power then died. Had the alternator replaced hoping this is the end of the problem and not a electrical short somewhere! Thanks for replying!

1 people found this helpful.

Hi everyone i hav a ? Ive jus had a similiar problem jus a couple of days ago.. my battery light came on and well had to replace battery/alternator/starter & starter solinoid on my 86 E150..after all that, yesterday battery light went out, this mrng it came back on.. had it tested at autozone and all passed! But the battery light is back on.. Can anyone help with any advice please?? Theres a short i was told but my friend thought he found & fixed it? But battery light back on today 5/10/17 If ANYONE of yall knows what possibly could help, id kindly appreciate the advice & solution Thank you kindly Lissa in texas

Your Answer

F-150

Looking for a Used F-150 in your area?

CarGurus has 215,874 nationwide F-150 listings starting at $1,300.

ZIP:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    10,260
  • #2
    dandyoun
    Reputation
    4,840
  • #3
    tennisshoes
    Reputation
    3,680
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,805 Great Deals out of 150,166 listings starting at $1,495
Used GMC Sierra 1500
725 Great Deals out of 59,132 listings starting at $1,995
Used Ford F-250 Super Duty
370 Great Deals out of 41,892 listings starting at $1,600
Used Toyota Tundra
479 Great Deals out of 39,021 listings starting at $1,999
Used Dodge Ram 1500
308 Great Deals out of 9,540 listings starting at $1,500
Used Toyota Tacoma
418 Great Deals out of 45,487 listings starting at $1,995
Used Ford Mustang
247 Great Deals out of 37,118 listings starting at $2,500
Used Ford F-350 Super Duty
405 Great Deals out of 24,310 listings starting at $2,495
Used Chevrolet Silverado 2500HD
376 Great Deals out of 29,654 listings starting at $2,000
Used Ford Explorer
826 Great Deals out of 65,899 listings starting at $700
Used Chevrolet Tahoe
538 Great Deals out of 36,843 listings starting at $1,600

Used Cars For Sale

2018 Ford F-150 For Sale
82 Great Deals out of 138,765 listings starting at $18,980
2017 Ford F-150 For Sale
149 Great Deals out of 9,949 listings starting at $18,950
2016 Ford F-150 For Sale
217 Great Deals out of 8,963 listings starting at $14,500
2015 Ford F-150 For Sale
275 Great Deals out of 10,705 listings starting at $13,500
2014 Ford F-150 For Sale
436 Great Deals out of 11,646 listings starting at $7,995

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.