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07 fj cruiser. Replaced the battery and all of the lights on the dash came on with a lound beeping sound. The brakes were barely working. Is this the alternator?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

freetek
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SOURCE: 2002 sonata 2.4l battery dash light on. replaced alternator. Still not charging

I don't know if your car has an integrated regulator or not; some house the regulator in a section of the alternator case, others mount it remote from it. The regulator monitors the load and battery voltag,e primitively but effectively, and controls the current flowing through the field winding of the alternator to ground, changing the magnetic field intensity and consequently the voltage output of the alternator. The 'hot' end of the field is internally connected to the + output, the 'cold' end is controlled by a transistor inside the regulator which, in turn, is controlled by circuitry monitoring the system voltage.     Some alternators can be tested by sticking a wire through a specified opening, actually shorting the controlled end of the field to ground briefly, while monitoring the voltage across the battery, doing this though for seconds only. This essentially bypasses a suspected defective regulator; this causes the output voltage to rise instantly to its maximum of ~17 volts if the alternator is OK.
I don't recommend poking a wire at random into an available opening so having a service manual (Haynes-Chilton) would be nearly mandatory.

Posted on Oct 03, 2008

  • 91 Answers

SOURCE: I have a 2001 PT Cruiser. The battery light came

Is it a remanufactured alternator. It sounds like you either got a faulty alternator or a wire is hooked up incorectly to it. I would test the voltage on the new one to make sure it wasnt a lemon If you are sure the wires are hooked up correctly.

Posted on Mar 15, 2009

honeymokey
  • 3113 Answers

SOURCE: Alternator keeps going bad - three so far. Battery light flickering off/on now.

Having worked for an Isuzu dealer I have seen this a lot with aftermarket alternators from places like auto-zone, napa etc. For some reason they will do strange things in these vehicles. The fix was to get a Isuzu alternator. We did have good luck with Beck Arnly alternators also. We also had a local rebuilder repair some with good luck too. If all else fails get a used one.

Posted on May 05, 2009

  • 7 Answers

SOURCE: battery indecator light on on dash

Check to make sure that there's power from the alternator to the battery on the charge-back wire. If nothing's there, then your alternator is junk and you'll have to replace it again.

Posted on May 21, 2009

  • 1 Answer

SOURCE: FJ cruiser issue

I had the same thing happen yesterday. I took it to the dealer, and they said the Catalytic Converter was bad and they needed to order a new one. You should take it to the dealer.

Posted on Jul 12, 2010

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