1989 4.9 I-6 something draining my battery.

Asked by Feb 01, 2014 at 05:35 PM about the 1989 Ford F-150 S Standard Cab LB

Question type: Maintenance & Repair

I have - 1989 ford f150 4.9 -6 my battery dies overnight. There seems to be a hissing
sound like a electronic part still on when I shut the engine down.it seems to be coming
from the back of block. Help need assistance

2 Answers

19,425

Make sure there are no lights staying on ,dome, glove box under hood.

1 of 1 people found this helpful.
Best Answer

Had the same problem with my Windstar. disconnect battery ground and use a test meter. hook one side to battery terminal and other lead to battery cable. should read .60 millie amps if not start pulling fuses until u find the right one. might have to tape sensor for doom light. mine was reading 1.7 millie amps. parasitic draw is what it is called

Your Answer

Add photo

Related Questions

  • 1989 f150 4.9l inline 6

    I just put a new starter solenoid, battery and starter in my 1989 f150 it tries to turn over and gets started for 1-2 seconds then dies like it isn't getting any fuel. I think it's the fuel pump, ...

    1989 Ford F-150 S Standard Cab 4WD SB

    -

    Maintenance & Repair

  • Battery Drain after Replacing Ground Cables 3 answers

    Last week my 1986 Ford F150 (300 inline 6) had an issue where the solenoid was getting stuck and causing the starter not to shut off. I replaced the starter and solenoid, but two days later it happe...

    1986 Ford F-150

    -

    Maintenance & Repair

  • 92 f150 custom 4.9 battery? 3 answers

    i have a 92 with the 4.9 l6. the person that previously owned it has a battery with low cca. im just curious to what the proper size battery is needed.

    1992 Ford F-150

    -

    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

  • Batteries draining down 31 answers

    The batteries drain down after the truck sits a couple days. Batteries are only 3 year old Interstates. Took it to my regular shop and they said the ECM was bad and replaced it. But the problem is s...

    2000 Ford F-250 Super Duty Lariat 4WD Extended Cab SB

    -

    Maintenance & Repair

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 7,930
#2 dandyoun
dandyoun
Reputation 4,360
#3 tennisshoes
tennisshoes
Reputation 2,750
View All

Related Models For Sale

Used GMC Sierra 1500
822 Great Deals out of 68,199 listings starting at $2,484
Used Ford Mustang
472 Great Deals out of 45,735 listings starting at $1,999
Used Ford F-250
481 listings starting at $3,475
Used Ford Ranger
197 Great Deals out of 5,805 listings starting at $1,650
Used Jeep Wrangler
277 Great Deals out of 18,163 listings starting at $2,950

Used Cars For Sale

2017 Ford F-150 For Sale
32 Great Deals out of 128,121 listings starting at $18,445
2016 Ford F-150 For Sale
121 Great Deals out of 17,380 listings starting at $18,848
2015 Ford F-150 For Sale
188 Great Deals out of 7,904 listings starting at $17,900
2014 Ford F-150 For Sale
382 Great Deals out of 12,590 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.