What are the steps in installing a serpentine alternator belt?

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Disconnect neg battery post release serpentine belt or alternator drive belt disconnect electrical connectors on alternator one plugs in one is secured by a nut on rear of alternator un-bolt alternator their will be either two or three bolts remove alternator and reverse steps to re-install

Hello, Alternators are a car part that can be very costly to fix because of labor costs. But with an hour or two of time and a little elbow grease, you can do it yourself. And to replace the alternator follow the following steps below:

Step 1. Pull your car into the garage or your work area. Turn the car off and let it sit for a while to cool.

Step 2. Begin by disconnecting the negative cable of the battery.

Step 3. Remove the serpentine belt from the pulley on the alternator. Do this by using a socket wrench to turn the serpentine automatic belt tensioner so that it allows slack in the belt. Then simply slip the belt off the alternator pulley.

Step 4. Locate and disconnect all the mounting bolts on the alternator, use a vehicle specific manual if you have any trouble.

Step 5. Disconnect all wires attached to the alternator then remove the alternator from the car.

INSTALLING NEW ALTERNATOR.

Step 1. Slide the new alternator into place. Do not worry about the serpentine belt yet.

Step 2. Replace the bolts that held the previous alternator to secure the new one in place.

Step 3. Attach the wires to the new alternator the same way they were attached to the old one.

Step 4. Adjust the serpentine belt tensioner the same direction you did in Section One to put slack in the belt. Wrap the belt around the pulley of the new alternator and then remove the socket wrench from the automatic belt tensioner.

Step 5. Inspect the belt to be sure it is not snug and follows the path required in the pulley and belt configuration diagram.

Step 6. Hook the negative battery wire back to the negative terminal on the battery.

Thanks

Hi,

Thanks for writing to Fixya.com.

Please find the steps to replace and install a serpentine belt for Nissan ultima.

http://www.ehow.com/how_6299871_install-serpentine-belt-nissan-altima.html
and
http://media.photobucket.com/image/serpentine%20belt%20for%202005%20nissan%20altima/harshreality001/Alternator%2011_26_2008/DSC01605.jpg


Thanks for contacting Fixya and please accept the solution if it has helped you.

How to Replace an Alternator (DIY Time: 2.5 hours)
Complexity: Moderate

Parts:
1. Alternator - $151.95

Tools:
1. Combination Wrench Set
2. Screwdriver
3. Multimeter
4. Serpentine Belt Tool
5. 3/8 in. Drive Ratchet
6. Socket Set

Steps:
Step 1 Open the hood and locate your vehicle’s alternator.
o Tip: Safety Tip:Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or safety shoes.
o Tip: Always make sure the struts on the hood can fully support the weight of the hood so that it does not close on you while working. The use of a hood prop can securely hold it in place.

Step 2 Using your digital multi-meter, check the battery voltage. A dead battery will usually have less than 9 volts. This would not be enough power to start most vehicles.

Step 3 To verify that your alternator is bad, make sure your battery is fully charged and can pass a load test.

Step 4 With the good battery installed, connect your digital multi-meter across the battery terminals with the engine turned off. A good battery should read between 12-13 volts.

Step 5 Start your engine and read the digital multi-meter’s output. The voltage should rise near 13.5-14.5 volts.

Step 6 Using an open end wrench, disconnect the battery’s negative cable.
o Tip: When disconnecting battery cables, be sure to always disconnect the negative cable first and do not allow it to come in contact with the negative terminal post while working on the vehicle.
o Tip: Wrap the battery cable with a shop towel and pull it away from the battery terminal.

Step 7 Disconnect the power and ground wires on the back of the alternator paying close attention to where each wire connects. Disconnect the wiring harness connector.
o Tip: Check for a loose wiring harness connector, cracked wire insulation, and corroded terminals. Replacing the wiring harness may be necessary.

Step 8 Loosen the alternator bracket bolts, and alternator adjusting bolts or alternator belt tensioner so that you can remove the alternator drive belt.

Step 9 Using the proper size socket and ratchet, remove the alternator mounting bolts, spacer (if equipped), adjusting bolt, lower pivot bolt (if equipped), and the alternator.

Step 10 Install new alternator.

Step 11 Using the proper size socket and ratchet, loosely install the alternator mounting bolts, spacer (if equipped), adjusting bolt and lower pivot bolt (if equipped).

Step 12 Install the alternator belt.
o Tip: When installing the alternator belt, make sure the alternator belt is fully seated in the groove of the pulleys.

Step 13 Pull the alternator until the alternator belt is tight.

Step 14 Tighten the alternator mounting bolts while gently moving the alternator unit to achieve proper alternator belt tension.

Step 15 Reinstall the power and ground wires to alternator. Install the wiring harness connector.

Step 16 Push down in the middle of the alternator belt to check belt tension. If the alternator belt moves more than a half an inch, it is too loose, adjust the alternator belt to proper tension before proceeding to next step.

Step 17 Now that the alternator belt has been installed and adjusted, reconnect the negative battery cable. Start the engine and check the battery voltage to verify proper alternator charging.

Step 18 Turn off the engine and recheck the alternator belt tension. Readjust the alternator belt tension if needed.


Good luck (remember comment and rated this).

you can get step by step instructions from a chilton manual. i go to the library, and copy the page or pages i need. libraries have every chilton auto manuals. may have to rent a specialty tool for belt tensioner pulley. can be rented at any parts store, money is returned when tool is. usually 20 bucks. put tool on tension pulley, pull to loosen belt tension, with other hand slip belt off of alternator or easiest pulley to get to. before you take belt off take a mental picture of belt route. when installing new belt remember if pulley is smooth it contacts smooth side of belt.

Hi:
The simple version is this:

Disconnect the negative battery terminal
Make a diagram of the routing of your serpentine belt if there isn't a picture under the hood.
Locate the spring loaded tensioner pulley , and using a breaker bar or large ratchet, rotate it to take the tension off of the serpentine belt, then slip the belt loose off of the tensioner. disconnect the electrical connectors off of the alternator. Unbolt the alternator in two places.
To install, reverse the process

Make sure your battery is fully charged before starting the car.

If you need better instructions, a one year subscription to www.alldatadiy.com is a good choice, for about $20 you can acess everything about your car!

here's a place you can print off the steps.<p>
ehow.com/how_replace_alternator-ford-explorer. good luck

It is fairly easy the alternator sits on top of the engine. Remove the serpentine belt their is a spring loaded belt tensoiner that rotates and belt will come right off. Remove the wires from the back of the alternator and remove the bolts holding it in place. The install is reverese of removal. IF you need more help go to you local auto parts store and pick up the Haynes manual it has a more in depth step by step guide.

here is step by step instruction on how to replace you alternator. please do not forget to rate and comment abotu your experience with fixya today 3.8L (VIN 1) Supercharged Engines

1. Disconnect the negative battery cable.
   
2. Remove the serpentine drive belt from the alternator, as outlined in Section 1 of this manual.
   
3. Detach the electrical connections from the alternator.
   
4. Unfasten the alternator mounting bolt and mounting bolt and nut.
   
5. Remove the alternator from the vehicle.
   To install:
   
   1. Position the alternator in the vehicle and secure with the mounting nut and bolt. Tighten to 5 ft. lbs. (8 Nm).
      
   2. Install the remaining mounting bolt and tighten to 5 ft. lbs. (8 Nm).
      
   3. Attach the alternator connections. Tighten the output terminal nut to 66 inch lbs. (7.5 Nm).
      
   4. Install the serpentine drive belt.
      
   5. Connect the negative battery cable.
      

3.8L (VIN 3, C & L) Engines

1. Disconnect the negative battery cable.
   
2. Using a suitable breaker bar or ratchet, rotate the tensioner counterclockwise, then remove the serpentine drive belt. For more information regarding serpentine drive belt removal, please refer to Section 1 of this manual.
   
3. If necessary, remove the fuel rail cover.
   
4. While supporting the alternator, remove the mounting bolts.
   
5. Tilt the alternator forward, then label and detach the electrical connectors.
   
6. Remove the alternator from the vehicle.
   
7. To install:
   
   1. Support the alternator in position, then install the alternator.
      
   2. Install the mounting bolts and tighten to 1 ft. lbs. (11 Nm).
      
   3. Attach the electrical connectors at the back of the alternator. Tighten the alternator output terminal nut to 93 inch lbs. (10.5 Nm) for 1987-92 vehicles, or to 66 inch lbs. (7.5 Nm) for 1993-94 vehicles.
      
   4. If removed, install the fuel rail cover.
      
   5. Install the serpentine drive belt and rotate the tensioner into position.
      
   6. Connect the negative battery cable.