How to Replace the Alternator on Chrysler Cars

by Contributing Writer; Updated June 12, 2017

If the alternator on your van is no longer charging the battery completely or is making grinding noises, it may be time for a new one. The alternator supplies the power needed for the charging system as well as powering the ignition, lights and electrical systems when the engine is running. If the alternator fails while you are driving, the engine will run, but it will use the battery as a power source until it has completely depleted the electricity from it. If you suspect your alternator is bad, remove it and have it bench tested at an auto parts store.

Under The Hood:

 How to Replace the Alternator on a 2000 Chrysler LHS

Removing the Alternator

Open the hood and detach the negative (black) battery cable using a wrench.

Loosen the alternator lower mounting bolt using a ratchet and socket.

Remove the upper radiator support using a ratchet, ratchet extension and socket.

Loosen the alternator pivot bolt using the ratchet and socket.

Loosen the alternator-belt adjustment bolt using the ratchet and socket and slip the belt off the alternator’s pulley.

Remove the alternator lower mounting bolt.

Unplug the electrical wire from the back side of the alternator.

Unfasten the battery-cable retaining nut from the back side of the alternator using a wrench and remove the cable.

Remove the alternator pivot bolt.

Remove the alternator from the vehicle.

Installing the New Alternator

Place the new alternator in its mounting position.

Install the lower and pivot mounting bolts hand-tight.

Tighten the alternator lower mounting bolt to 30-ft-lbs. (41 Nm) using a torque wrench.

Tighten the alternator pivot bolt to 40-ft-lbs. (54 Nm) using a torque wrench.

Attach the battery cable to the back side of the alternator using the wrench.

Plug the electrical wire to the back side of the alternator.

Slip the belt over the alternator’s pulley and tighten the belt-adjusting bolt to adjust the belt.

Replace the upper radiator support using the ratchet, ratchet extension and socket.

Install the negative (black) battery cable using the wrench.

Items you will need

  • Wrench

  • Ratchet

  • Socket set

  • Ratchet extension

  • Torque wrench

 How to Replace an Alternator on a 2000 Chrysler Sebring Convertible

Disconnect the negative battery cable from the battery with a wrench.

Disconnect the field circuit (wiring harness) from the alternator by pushing in on the locking tab with a flat-head screwdriver and then by pulling the harness off the alternator.

Remove the nut that secures the grounding wire to the alternator with a wrench. Loosen, but do not remove, the adjusting T-bolt and the pivot bolt on the bracket that holds the alternator.

Push the alternator down and lift the drive belt off the alternator pulley. Remove the adjusting T-bolt and the pivot bolt from the bracket holding the alternator and lift the alternator out of the engine bay.

Place the new alternator next to the mounting bracket and thread the adjusting T-bolt and pivot bolt with your fingers through the alternator and into the mounting bracket. Do not tighten with a wrench.

Place the drive belt over the alternator pulley.

Place a pry bar between the alternator casing and the mounting bracket. Push down on the pry bar. This pushes up on the alternator and removes slack from the drive belt.

Tighten the adjusting T-bolt and the pivot bolt with a wrench. Reconnect the grounding wire and secure it with the nut. Reconnect the wiring harness by pushing the connector into the female connector on the alternator.

Reconnect the negative battery cable to the battery.

Items you will need

  • Wrench set

  • Flat-head screwdriver

  • Pry bar

 How to Replace the Alternator in a Chrysler Sebring

Determine which alternator your Chrysler Sebring will need. Make sure the new alternator is compatible with your Sebring's engine. Models made from 2001 to 2006 can have a 2.4 L EDZ or 2.7 L EER engine. Models made after 2006 have choices that include a 2.0 L GEMA, 2.0 L TDI, 2.4 L GEMA, 2.7 L EER, or 3.5 L EGJ engine.

Disconnect the negative battery cable with a socket wrench. Remove the cover for the alternator drive belt and disconnect the electrical connections to the alternator.

Remove the alternator drive belt and disconnect the alternator adjusting bolt and pivot bolts but be careful not to drop the spacer for the pivot bolt as you do so. Remove the alternator by sliding it toward the headlight bucket.

Install the new alternator assembly and tighten the adjusting and pivot bolts on the alternator to 40 ft. lbs. with a torque wrench. Install the alternator drive belt and use a belt tension gauge to adjust the belt tension (80 lbs. for a used belt and 150 lbs. for a used one).

Attach the electrical connections to the alternator and replace the belt cover. Reconnect the negative battery cable with a socket wrench.

Items you will need

  • New alternator

  • Belt tension gauge

  • Socket wrench set

  • Torque wrench

 How to Replace the Alternator on a 2002 Chrysler 300

Removal

Disconnect the negative -- black -- battery cable using a 10 mm wrench to remove the nut.

Remove the alternator drive belt by reducing the slack on the belt tensioner with your hands. This will take some effort. The tensioner only moves side to side.

Disconnect the alternator field circuit plug using a 13 mm wrench. Disconnect the B+ terminal nut using the same wrench. Both are positioned side by side attached to the back of the alternator. It does not matter which one you take off first.

Remove the two lower mounting bolts to the alternator bracket using a 1/2-inch wrench. You are not removing the bracket, just the bolts holding the alternator to the bracket.

Remove the alternator by sliding it up and out.

Replacement

Install the new Chrysler 300 alternator between the alternator bracket. The bracket provides a space to cradle the alternator. Install and tighten the two lower mounting bolts using a 1/2-inch wrench, and torque using the torque wrench to 48 foot-pounds.

Install the B+ terminal nut and wire using the correct size wrench. Tighten using the torque wrench to 115 inch-pounds.

Connect the alternator field circuit plug using the 13 mm wrench. Connect the negative battery cable using a 10 mm wrench. There is no need to torque down the battery cable -- it just needs to be tight.

Items you will need

  • Wrench set

  • Torque wrench

 How to Replace the Alternator in a 2001 Chrysler Sebring

Disconnect both the positive and negative battery cables using a socket wrench. Unplug the electrical connection located on the back of the alternator.

Remove both the mounting bolts located on either side of the alternator. This will loosen the belt tension allowing for the alternator to be removed. Take out the alternator and compare it with the new one to be certain that you have the correct replacement. Visually inspect the belt for excessive wear and cracking and replace if needed.

Install the replacement alternator and pull the belt over the pulley wheel. Tighten the belt tension by pressing the alternator to one side with a bar or heavy wrench. Insert the mounting bolts and tighten the alternator in place. Allow about ¼ inch of play to remain in the belt, being certain not to over tighten.

Reconnect the electrical alternator plug and both battery cables. Start the vehicle and allow it to run for several minutes to fully charge the replacement alternator. Monitor the battery gauge located on your instrument panel to see if the repair was made successfully.

Return the old alternator to where it was purchased. Some alternators are re-manufactured and you usually can receive a partial refund in exchange for the old unit.

Items you will need

  • Socket set

  • Heavy wrench

 How to Replace the Alternator on a Chrysler Voyager

Remove the negative battery cable from the battery and isolate the cable so it cannot contact any of the posts with which you are working on the alternator. Locate the serpentine belt tensioner on the front of the engine.

Place a socket and ratchet on the bolt in the center of the belt tensioner. Rotate the tensioner clockwise to loosen the belt. Slide the belt off the alternator pulley and lay it aside for now.

Locate the wiring harness connections on the back of the alternator. There are five connections that all need to be removed using a socket and ratchet. Remove the nuts from each of the five connections and remove the wiring harness.

Locate the two mounting bolts that secure the alternator to the mounting bracket. There is one at the top and one at the bottom of the alternator. Remove both bolts with a socket and ratchet. Remove the alternator from the engine compartment.

Install the new alternator onto the mounting bracket using the two mounting bolts from the original alternator. Tighten the bolts with a socket and ratchet.

Install the wiring harness connector on the rear of the alternator. The wires are built into the harness so they can only reach one connector for each wire. Start by installing the larger wire onto the "B" terminal and the rest will fall right where they need to attach. Install the retaining nuts on the studs and tighten them with a socket and ratchet.

Place a socket and ratchet on the bolt in the center of the belt tensioner, rotating it clockwise. Slide the belt onto the pulleys and release the tensioner.

Install the negative battery cable onto the negative battery terminal and tighten the retaining bolt with a wrench. Start the van and verify that the repair was successful.

Items you will need

  • Wrench set

  • Socket set