Question about 2005 Ford F-150

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Battery light on my 2005 ford f150 stays on

Replaced alternator but battery light comes on after driving a while...

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 5 Answers

SOURCE: my 1995 ford f150 v8 302 will not start

Ford truck was running fine then it just shut's OFF, afterwards did start once stayed on for a couple of minutes then shut off again. A friend thinks it's the computer after checking the car. Note I did pressure wash the engine 2 day's before and didn't use it till now.

Posted on Nov 24, 2009

  • 958 Answers

SOURCE: 2000 Ford Escape - Battery light

yup..it is the alternator. you don't normally repair alternators there right? it could be a diode problem or a regulator problem.

if you know how to replace the diode assembly in your alternator then you can try and also the IC regulator also could be the bad part.

you may want to check the simplest thing....the belt. if you have loose alternator belt then it could just be that one.( least of all cost )

tnx 4 using fixya,

drcool

Posted on Sep 23, 2008

  • 299 Answers

SOURCE: 2006 Ford Taurus

Where did you buy alt,have had several issues with alternators from auto zone,But check belt tention and idle speed.

Posted on Jun 18, 2009

  • 31 Answers

SOURCE: Ford 2005 E350 econoline van has had a battery light problem

you have a voltage drop.fine the damaged wire going fro mthe positive terminal of your battery to your alternator.fix this or it will keep working the alternator and draining your battery.

Posted on Oct 04, 2009

wracefans24
  • 1985 Answers

SOURCE: 2001 Ford F150 battery light comes on at running

verify the belt tension-er is staying tight and not floppy around at higher RPMS,or the belt is not slipping ,have the alternator checked at higher RPMS not at an idle.the last is make sure the single wire little wire connector is tight

Posted on Nov 22, 2009

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verify the belt tension-er is staying tight and not floppy around at higher RPMS,or the belt is not slipping ,have the alternator checked at higher RPMS not at an idle.the last is make sure the single wire little wire connector is tight

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Most vehicles if you get the car running and unhook the positive battery cable it will stay running that is because it is running off the alternator. if it dies like your talking about I would most definitely say your alternator needs to be replaced. Most likely when you jumped your father in laws pick up there was a bad ground somewhere and your alternator got a surge of electricity and it fried it. Hope this helps.

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