Question about Chrysler LeBaron

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I have a 1990 Chrysler Lebaron Convertable, 3.0l V6 with 64k miles. This past week the "Check Engine" light came on and then the lights started to go dim. Finally the car died. Classic alternator problem, right? I removed the old alternator and replaced with a new one. During the R&R there was an arc when one of the touched a bracked on the car (I forgot to disconnec the battery). I jump started the car and it ran until the jumper cables were removed. It died immediately. Still not thinking that spark had anything to do with anything at that point I removed the new alternator and exchanged it for another new one. (The NAPA was unable to check the alternator at that time so they replaced with another new one) At this time I also picked up another battery as the old one was already 5 years old and it was time for a new one. So with the new battery in place, battery terminal disconnected from the post, the new alternator was installed without any trouble. connect the battery, car started without any trouble but the "Check Engine" light was still on. Leading me to believe that the car was only running off the battery. I couldn't get my hands on a voltage meter to confirm this. But now I'm thinking that the spark may have fried something. Is there a fusible link or an in-line fuse between the battery and alternator that would take the brunt of the spark vs. frying a major electrical component?

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  • Thomas
    Thomas Oct 15, 2013

    I traced the problem back to a blown fuse under the drivers side dash. Fuse #16 for this model/year car.
    1990 Chrysler Lebaron Convertible 3.0L v6.


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Could be just a need to reset the "check engine light", normally this is accomplished when the battery is disconnected for 15 minutes...If your Lebaron is now running smoothly, have the alternator battery tested for free at most auto parts stores for peace of mind. Auto Zone can also read the check engine light code for free. Tight belt, good tensioner pulley, good alternator, you should be in business. Most likely no harm done when the arc occurred.

Posted on Oct 14, 2013

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The ECU would be another place to look. This is really sad and I can see you could spend a lot of money chasing a solution. My suggestion is, spend the money once, go to an Auto Electrician and get them to provide the answer which should be pretty quick.

Posted on Oct 13, 2009

  • 1168 Answers

SOURCE: 1999 chrysler concorde. 131K mi.

Hello Kurtzuba.

Actually, although rare, this could be a computer issue.
The voltage regulator is built into the computer on your Concorde and may not be completing the circuit.

I'm not sure how you verified the alternator is good other than you removed it and had it tested.

To verify the problem is in the computer, find the orange/dark green wire that supplies power to the alternator.
This is fused power to the field. Verify it has 12.5 volts positive. If not, that will need to be repaired.

If it is OK, then find the dark green wire that also hooks to the alternator.
This wire leads to the computer which controls the amount of ground to regulate the amount of output from the alternator stator.
Attach a wire with an alligator clip to the dark green wire terminal on the alternator.
Attach a voltmeter to the battery.
Start the car and touch the other end of the attached wire for a few seconds (no more than a minute) to the NEGATIVE battery terminal.
If the alternator begins to charge you will need to verify the green wire is good to the computer.
If OK, replace the computer.

If you need more assistance with this issue, let me know here.
Thank you for using FixYa.

Posted on Mar 28, 2011

  • 436 Answers

SOURCE: Daughter called me wont

it sounds like you have blown fuse to the Alternator.. I don't know what car you are talking about but they charging systems vary.. But if alternator isn't getting all the power it needs it won't charge. this should be checked.

good luck

Posted on Oct 21, 2011

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