How to Change an Alternator on a Ford Aerostar Minivan

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The alternator in a Ford minivan is a generator that supplies all the electricity the van needs. It also charges the battery. Signs that an alternator is failing are dim lights, illumination of the battery warning light, and a swirling sound coming from the alternator itself. If you notice such conditions, you should change the alternator. Discover how to change an alternator on a ford aerostar minivan.

To proceed to change the alternator of a Ford Aerostar van, follow these steps:

  1. Disconnect the cable going to the negative terminal of the battery with a socket wrench. Loosen the retaining nut on the clamp and remove it from the battery terminal.
  1. Loosen the alternator pivot bolt.. This is the top most bolt on the alternator that holds it to an adjustable bracket.
  1. Loosen the lower mounting bolt.
  1. If your Ford van uses a serpentine belt, releases tension on the belt by loosening the automatic tensioner. On most Ford engines, the tensioner is located at the top left of the front of the engine. It should be facing you if you are standing looking at the engine. Use a socket wrench and Torx bit, and turn it counterclockwise to release the tension on the belt. You may need to use a breaker bar to get enough leverage. Ford almost always uses a 3/8-inch Torx bit for auto tensioners.
  1. Remove the belt from the alternator pulley.. Do not remove the belt completely and note the orientation of the belt for when you reinstall it.
  1. Unplug the electrical connector from the alternator. Squeeze the top of the electrical plug and pull the connector out of the back of the alternator.
  1. Remove the two bolts top and bottom of the alternator.
  1. remove the alternator pulling it forward and lifting it.
  1. Install the new alternator assembly. Installation is the reverse of removal. Make sure when installing the belt that the teeth on the belt are centered in the grooves on the alternator pulley. Also, for auto-tensioned straps, be sure to follow the path of the stamped strap on your van’s frame to the left of the hood latch.
  1. Square a breaker bar between the alternator housing and the firewall for pivot bolt type alternators. Apply tension on the belt while tightening the pivot bolt to 40 foot-pounds with a torque wrench. Use a belt tension gauge to make sure the belt tension is at least 50 lbs. and no more than 150 lbs.
  1. Tighten the mounting bolt of the alternator less than 40 foot-pounds with a torque wrench.
  1. Reconnect the battery and turn the ignition key to the “II” position. Start the truck and verify that the battery light goes out.

Tips

Now that you know how to change an alternator on a Ford Aerostar minivan it is important that you know that for specific information on replacing the alternator on your Ford van and for specific torque values ​​for your specific van, consult the manual for your particular vehicle. .

1989-1991 Ford Aerostar Snow Covered
1989-1991 Ford Aerostar Snow Covered

You must know: How to Replace a Headlight on a Ford Aerostar

The alternator in a Ford minivan is a generator that supplies all the electricity the van needs. It also charges the battery. Signs that an alternator is failing are dim lights, illumination of the battery warning light, and a swirling sound coming from the alternator itself. If you notice such conditions, you should change the alternator. Discover how to change an alternator on a ford aerostar minivan.

To proceed to change the alternator of a Ford Aerostar van, follow these steps:

  1. Disconnect the cable going to the negative terminal of the battery with a socket wrench. Loosen the retaining nut on the clamp and remove it from the battery terminal.
  1. Loosen the alternator pivot bolt.. This is the top most bolt on the alternator that holds it to an adjustable bracket.
  1. Loosen the lower mounting bolt.
  1. If your Ford van uses a serpentine belt, releases tension on the belt by loosening the automatic tensioner. On most Ford engines, the tensioner is located at the top left of the front of the engine. It should be facing you if you are standing looking at the engine. Use a socket wrench and Torx bit, and turn it counterclockwise to release the tension on the belt. You may need to use a breaker bar to get enough leverage. Ford almost always uses a 3/8-inch Torx bit for auto tensioners.
  1. Remove the belt from the alternator pulley.. Do not remove the belt completely and note the orientation of the belt for when you reinstall it.
  1. Unplug the electrical connector from the alternator. Squeeze the top of the electrical plug and pull the connector out of the back of the alternator.
  1. Remove the two bolts top and bottom of the alternator.
  1. remove the alternator pulling it forward and lifting it.
  1. Install the new alternator assembly. Installation is the reverse of removal. Make sure when installing the belt that the teeth on the belt are centered in the grooves on the alternator pulley. Also, for auto-tensioned straps, be sure to follow the path of the stamped strap on your van’s frame to the left of the hood latch.
  1. Square a breaker bar between the alternator housing and the firewall for pivot bolt type alternators. Apply tension on the belt while tightening the pivot bolt to 40 foot-pounds with a torque wrench. Use a belt tension gauge to make sure the belt tension is at least 50 lbs. and no more than 150 lbs.
  1. Tighten the mounting bolt of the alternator less than 40 foot-pounds with a torque wrench.
  1. Reconnect the battery and turn the ignition key to the “II” position. Start the truck and verify that the battery light goes out.

Tips

Now that you know how to change an alternator on a Ford Aerostar minivan it is important that you know that for specific information on replacing the alternator on your Ford van and for specific torque values ​​for your specific van, consult the manual for your particular vehicle. .

1989-1991 Ford Aerostar Snow Covered
1989-1991 Ford Aerostar Snow Covered

You must know: How to Replace a Headlight on a Ford Aerostar

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