2005 F150 battery question
10

Asked by SALTON831 Jul 09, 2016 at 11:39 PM about the 2005 Ford F-150 XLT

Question type: Maintenance & Repair

Yesterday while driving home from the office I
noticed that my battery light suddenly lit. Rev
engine it goes out;  no other indication of failure;
that car starts fine runs fine;  all gauges is working
properly.

Tonight driving home I noticed that the battery light
was lit the  battery indicator kept dropping dropping
dropping .   Near home all gauges failed; windows
will not close; lights will not turn on;  all indication
internally  of complete electrical failure .

With a diagnostic tool I determined that battery was
low and not charging
I check battery charge confirmed to be low

How can I determine if it's the alternator or just the
battery ?

5 Answers
70,105

Kelly answered 7 years ago

well at the verry least..if you have a volt metter after you charge the battery and start it ceck the voltage of the + - battery...is it 12.5 or more...rev the engine up some...does the voltage increase? if so good... also these checks are free at most places.. called a VAT test..

1 people found this helpful.
Mark helpful
64,530

firebird338 answered 7 years ago

For the battery light to come on then go off giving you a warning that the alternator has stopped charging so I agree with Jim.

1 people found this helpful.
Mark helpful
64,530

firebird338 answered 7 years ago

The biggest mistake people make when they see the battery light icon come on is the battery is bad but what it really means is electrical system has stopped charging 95% of time it is the alternator.

1 people found this helpful.
Mark helpful
10

SALTON831 answered 7 years ago

Here is the BEST and simplest answer I found With The engine operating; Disconnect the negative wire from the battery. If the charging system (alternator) is working properly the engine will not die. If the alternator is bad The engine will stop

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • 2005 F150 battery question 5 Answers

    Yesterday while driving home from the office I noticed that my battery light suddenly lit. Rev engine it goes out; no other indication of failure; that car starts fine runs fine; all gauges is wo...

    2005 Ford F-150 XLT

    -

    Maintenance & Repair

  • 2005 f150 headlights will not come on... 4 Answers

    2005 f150 headlights will not come on...Check fuses (good), disconnected battery to reboot, No juice to the plug to the bulb...please advise?

    2005 Ford F-150 XLT

    -

    Maintenance & Repair

  • 2000 f150 coil pack question 3 Answers

    My 2000 f150 5.4 triton truck has a miss and we looked hooked it up to the computer and it said that the #4 cylinder had a misfire. We took the coil pack out but the bolt will not come out no matte...

    2000 Ford F-150 Lariat 4WD Extended Cab SB

    -

    Maintenance & Repair

  • 2010 f150 transmission question 3 Answers

    I have a 2010 f150 4x4 4.6l that shifts fine from 1 to 2 then into drive but when it gets to drive it's like it's in neutral WTF hoping it's a simple fix just dropped a mother load in front differenti...

    2010 Ford F-150 XL 4WD

    -

    Maintenance & Repair

  • callbacks on 0n a f150 2005 2 Answers

    wantd to no all the call backs for a 2005 ford f150 pickup

    2005 Ford F-150 Lariat SuperCab

    -

    Maintenance & Repair

F-150

Looking for a Used F-150 in your area?

CarGurus has 133,226 nationwide F-150 listings starting at $1,100.

ZIP:

Own this car?

Share your experience with others.

2005 Ford F-150

Write a car review

Review another car

Shortcuts

Search Ford F-150 Questions

CarGurus Experts

  • #1
    OJ
    Reputation
    41,860
  • #2
    Gene Arnett
    Reputation
    15,990
  • #3
    Rowefast
    Reputation
    15,480
View All

Know more, shop wisely

Search

Related Models For Sale

Used Chevrolet Silverado 1500
4,179 Great Deals out of 131,069 listings starting at $1,000
Used GMC Sierra 1500
1,881 Great Deals out of 66,222 listings starting at $875
Used Toyota Tundra
1,104 Great Deals out of 32,965 listings starting at $3,000
Used Ford F-250 Super Duty
1,374 Great Deals out of 42,602 listings starting at $2,000
Used Toyota Tacoma
2,006 Great Deals out of 32,954 listings starting at $2,990
Used Dodge RAM 1500
78 Great Deals out of 1,592 listings starting at $995
Used Ford Ranger
615 Great Deals out of 12,262 listings starting at $1,999
Used Ford Mustang
931 Great Deals out of 22,596 listings starting at $1,100
Used Chevrolet Silverado 2500HD
1,081 Great Deals out of 30,772 listings starting at $1,350
Used Ford Explorer
2,179 Great Deals out of 63,184 listings starting at $825
Used Chevrolet Colorado
914 Great Deals out of 23,174 listings starting at $900
Used GMC Sierra 2500HD
531 Great Deals out of 20,685 listings starting at $5,988

Used Cars for Sale

2024 Ford F-150 For Sale
54,183 listings starting at $27,865
2023 Ford F-150 For Sale
690 Great Deals out of 23,507 listings starting at $27,600
2022 Ford F-150 For Sale
582 Great Deals out of 6,202 listings starting at $18,999
2021 Ford F-150 For Sale
858 Great Deals out of 9,393 listings starting at $17,990
2020 Ford F-150 For Sale
626 Great Deals out of 6,176 listings starting at $8,500

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.