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My 2000 chrysler concorde alternator isn't

Posted by jeffery wigginton on


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  • Cars & Trucks Master
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The computer controls alternator output. If the alternator passes a bench test but is not charging at idle speed on the car, it could be the computer or a bad connection in the harness.

Posted on Jan 11, 2013


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Steve Allison

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SOURCE: 2000 Chrysler Concorde

The alternator has semiconductor diodes to change the AC it generates into DC for charging and operation of the electrical system.
These diodes can fail 'a little' meaning that their reverse resistance falls below its normal level, which is very high and will only allow a few microamps to flow, a level of discharge lower than that your other electronics such as clock and digital odometer functions draw and insignificant to the battery's health.
If you have a multimeter with a 10 Amp range, something very common even on the cheapest digitals via a separate unfused jack, you can remove your negative battery clamp, insert the meter (set for that separate range), black lead on the clamp, red on the battery terminal, and measure current draw with the engine off.
Note: Fasten one lead firmly and the other, tap only until you can see whether the drain is greater than 10 Amps. If is much greater, it will destroy the meter bbut briefly connecting shouldn't hurt it.
These meters can be had in auto parts stores, Radio Shack (in the US) or other electronic suppliers. If in the US, you might check for Harbor Freight tool stores in your area; I have bought several of these handy meters for $3 US there.        

Posted on Dec 30, 2008



  • 122 Answers


You will need to disengage the Negative terminal (Black side) and then the Red (positive side). In addition, there might be a securing bracket with two bolts or wing nuts, loosen these and the rods can be pushed down and twist out of the bottom. Once this is done remove the battery and head to your local Auto parts store, they can help you select the correct one. re-assemble as you have taken apart. you will need to re program your stereo and reset your clock, (prior to removing terminals) make sure there are no special lock out codes for your stereo. Good luck!

Posted on Sep 12, 2009


ZJ Limited

  • 17970 Answers

SOURCE: how to remove alternator from 1997 Chrysler

3.3L Engine

  1. Disconnect the battery negative - cable.

Fig. Wiring and nut locations

  1. Disconnect the alternator field circuit plug.
  2. Remove the B+ terminal nut and wire.
  3. Loosen the adjusting T-bolt, but do not remove it.
  4. Loosen the pivot bolt, but do not remove it either.
  5. Remove the alternator drive belt.
  6. Remove the adjusting T-bolt, pivot bolt, and mounting bolt, be careful not to loose the spacer.
  7. Remove the alternator.
To install:
  1. Attach the alternator to the support bracket. Tighten all bracket and alternator (except for the wiring nuts) bolts to 40 ft. lbs. (54 Nm).
  2. Install the B+ terminal nut and wire and tighten to 75 inch lbs. (9 Nm).
  3. Install the drive belt onto the alternator pulley. Make certain that the belt is seated correctly on the pulley.
  4. Connect the negative - battery cable.

3.5L Engine

  1. Disconnect the negative battery cable.
  2. Loosen the lower mounting bolt but do not remove it.
  3. Loosen the pivot bolt, but do not remove it.

  1. Loosen the belt adjusting bolt.
  2. Remove the alternator drive belt.
  3. Remove the bracket.
  4. Remove the lower mounting bolt and pivot bolt.
  5. Remove the alternator.
  6. Disconnect the alternator field circuit plug.
  7. Remove the B+ terminal nut and wire.
To install:
  1. Attach the alternator and bracket to the engine, then tighten the mounting bolts to 40 ft. lbs. (54 Nm).
  2. Install the drive belt onto the alternator pulley. Make certain that the belt is seated correctly on the pulley.
  3. Install and tighten the B+ terminal nut and wire to 75 inch lbs. (9 Nm) onto the new alternator.
  4. Connect the alternator field circuit plug.
  5. Connect the negative battery cable.
Hope helped with this (remember rated this help) Good luck.

Posted on Nov 03, 2009

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