what is causing battery to drain?

Asked by May 18, 2015 at 03:42 PM about the 1994 Ford F-150 XLT LB

Question type: Maintenance & Repair

Truck would not start
..jumped it w/my car…started fine…the battery in my truck is new.I let it charge off of
the car 20 min. Every thing seemed fine..no warning lights..idled great..tranny went into
all gears..breaks worked…guages all registered. BUT….when i take the jumper cable
from the car off the truck will not stay running and the battery is dead shortly there
after.First thing i notice is the ABS warning light comes on…then airbag warning light!
What ever the cause it
drains power from battery  and the
the engine dies. What is causing this? Truck sat most of the winter and when i drove it
this spring the brakes were some what noisey but quieted down after awhile! I figured
they had to be a little rusty nothing to abnormal! Problem truck is having seems to have
something to do with the brakes! They have fluid and the foot petal pressure seems
normal but thinking the ABS sensor is the culprit! Forgot to mention all fuses seem to
ok.. did not find any that had burned out or broken!
awhile!

3 Answers

223,465

ABS has nothing to do with the car turning off after you disconnect the battery. Sounds like the battery has a shorted cell or your battery cables/grounds are the issue.

16,660

If the engine kills as soon as you remove the jumper cables check the alternator. If it is not working it will not charge the batter and without voltage the engine gets no spark. Also, check the main ground cable coming off the battery to the frame or where ever it is connected for corrosion.

223,465

If the battery and cables are good, you need to check for a parasitic draw. youtube has a good video on finding the culprit.

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

  • battery drain over night 1 answer

    1999 Ford F-150 Lariat 4WD Extended Cab LB

    -

    Maintenance & Repair

  • Insturment panel guages not working, battery being drained. 1 answer

    The instrument panel gauges are not working and now when we turn off the engine, there is a spitting noise to the right of the steering wheel. The battery is brand new but is being drained continuousl...

    1998 Ford F-150 STD LB

    -

    Maintenance & Repair

  • Battery draining 4 answers

    Hey guys, I took my truck to pepboys and they fixed the cables running to the alternator (apparently they were wired incorrectly) for a couple weeks my truck worked perfect. All of a sudden as I'...

    1986 Ford F-150 STD Standard Cab LB

    -

    Maintenance & Repair

  • Battery Light ON... Drains while running 1 answer

    A few days ago, battery light came ON... Then pretty dramatic draw on Battery Gauge became evident. Had Alternator checked... tested bad Voltage regulator which is inside the Alternator. Changed out ...

    2001 Ford F-150 XLT Extended Cab LB

    -

    Maintenance & Repair

  • slamed my door and now my blower stoped working and slow drain 1 answer

    slammed my door on a rainy day, heater blower stopped working and now I have a slow drain on my battery, killing my battery in one night. I replaiced my heater blower resistor but still nothing. ple...

    2002 Ford F-150 XLT SuperCab 4WD SB

    -

    General

F-150

Looking for a Used F-150 in your area?

CarGurus has 212,369 nationwide F-150 listings starting at $1,000.

ZIP:

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 6,980
#2 dandyoun
dandyoun
Reputation 4,180
#3 tennisshoes
tennisshoes
Reputation 2,510
View All

Related Models For Sale

Used GMC Sierra 1500
935 Great Deals out of 62,272 listings starting at $1,395
Used Dodge Ram 1500
530 Great Deals out of 12,833 listings starting at $1,995
Used Toyota Tacoma
619 Great Deals out of 35,131 listings starting at $2,155
Used Ford Mustang
361 Great Deals out of 44,495 listings starting at $1,000
Used Ford F-250
514 listings starting at $3,500
Used Ford Explorer
937 Great Deals out of 74,004 listings starting at $750
Used Chevrolet Tahoe
776 Great Deals out of 28,447 listings starting at $1,500
Used Ford Ranger
204 Great Deals out of 6,719 listings starting at $1,450
Used Jeep Wrangler
392 Great Deals out of 19,082 listings starting at $3,000

Used Cars For Sale

2017 Ford F-150 XLT LB For Sale
6 listings starting at $23,400
2016 Ford F-150 XLT LB For Sale
16 listings starting at $27,495
2015 Ford F-150 XLT LB For Sale
1 listings starting at $27,995
2014 Ford F-150 XLT LB For Sale
10 listings starting at $14,995