Why the battery starts dying while vehicle is running??

Asked by Mar 24, 2016 at 12:00 PM about the 1998 Ford Expedition 4 Dr XLT 4WD SUV

Question type: Maintenance & Repair

A fried of mine has a 1998 Ford expedition with 5.4 l v8, battery was checked
and charged at advance auto and also alternator was also bench tested,
reinstalled and started right up, but within 30 minutes had to jump start vehicle
again, had to do it several times just to get it back home, what would be the
problem, tired of paying repairs, still has same problem.

7 Answers

98,485

That rig has a computer controlled charging system, so if the battery and alternator both checked good then the problem could be in the computer or the wiring itself. I recommend taking it to a shop you trust and have it scanned for trouble codes and wiring issues.

365

IF ITS ACTING UP LIKE A BAD ALT I WOULD CK THE AC COMPRESSOR AS AT TIME WHEN THE AC COMPRESSOR ENGAGE IT PULL TO MANY AMPS ACTS LIKE A BAD ALTERNATOR ...BUT IT DOESNT MEAN YOU DONT HAVE A BAD ALTERNATOR AFTER 30MIN OF DRIVING THATS WHEN THE VOLTAGE REGLATOR BREAKS DOWN ...I WOULD HAVE TO SAY U HAVE BAD ALTERNATOR .

The AC is not working, next project as soon as I can fix the battery dying issue

Also after starting there is a slow beeping sound coming from passenger side dash separate from normal starting chime.

98,485

That could be caused by voltage, low power can cause all kinds of weird problems on these newer computer controlled vehicles. I would still get it checked before it starts causing other systems to fail.

365

aah theres the culprit beep on passenger side i bet the car have sunroof ....on the right side there a fuse box i bet if you pull it you would find water damage in that fuse box very common on expedition and navigator....

73,065

You may have a bad battery, may be that a cell is shorted out.

Your Answer

Expedition

Looking for a Used Expedition in your area?

CarGurus has 21,857 nationwide Expedition listings starting at $1,500.

ZIP:

Ford Expedition Experts

  • #1
    T_S_T
    Reputation
    1,920
  • #2
    Larry Sturgis
    Reputation
    1,410
  • #3
    lightGear
    Reputation
    1,030
View All

Related Models For Sale

Used Chevrolet Tahoe
642 Great Deals out of 36,955 listings starting at $1,800
Used Ford Explorer
796 Great Deals out of 63,363 listings starting at $1,495
Used Chevrolet Suburban
291 Great Deals out of 20,596 listings starting at $1,000
Used Lincoln Navigator
96 Great Deals out of 5,080 listings starting at $1,900
Used Ford F-150
2,234 Great Deals out of 183,024 listings starting at $1,500
Used GMC Yukon
419 Great Deals out of 21,028 listings starting at $1,495
Used Cadillac Escalade
212 Great Deals out of 11,073 listings starting at $2,888
Used Dodge Durango
278 Great Deals out of 20,488 listings starting at $999
Used Toyota 4Runner
244 Great Deals out of 21,760 listings starting at $1,500
Used Ford F-250 Super Duty
356 Great Deals out of 43,712 listings starting at $1,250

Used Cars For Sale

2018 Ford Expedition For Sale
13 listings starting at $50,265
2017 Ford Expedition For Sale
25 Great Deals out of 12,614 listings starting at $28,993
2016 Ford Expedition For Sale
96 Great Deals out of 1,566 listings starting at $24,900
2015 Ford Expedition For Sale
12 Great Deals out of 568 listings starting at $19,995
2014 Ford Expedition For Sale
45 Great Deals out of 774 listings starting at $14,995

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.