How to replace an alternator drive belt - 1992 Mazda MX-3

remove battery neg lug first. do not yank off alternator wires! until
this step is done first, or boom fire or eat acid.

which engine, we cant guess them here.
my guess H27 v6, wrong the 3.6L


all belts covered on car. (accessory)

here is a real 2007 page
seem you get lost at step 7
right>?


the alternator is NOT adjustable
so why ask this?
the $4 FSM covers this.
under drive belt replacement.
Drive Belt Replacement


Removal Procedure

Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .

Install the engine support fixture. Refer to Engine Support Fixture .

Remove the engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right Side .

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

Remove the engine splash shield. Refer to Engine Splash Shield Replacement - Right Side .

Remove the right side engine mount bracket. Refer to Engine Mount Bracket Replacement - Right Side .

Lower the vehicle.


Rotate the drive belt tensioner clockwise to release the drive belt tension.

Slide the drive belt off of the belt idler pulley (1).

Slowly release the drive belt tensioner.

Remove the drive belt from the accessory drive pulleys.
if the post was to remove alternator? is it
do above
then unbolt alt.
end guessing what you are doing....

adjust ur belt by following steps
now that you know where the components are these components are driven by a belt. So when you turn your AC on there’s a belt that’s driving the AC compressor, when you turn the stirring wheel and you have that nice that easy feel of turning the stirring wheel when you’re parallel parking your car that’s the power stirring pump doing its job. Your alternator is keeping the battery charged, the lights on and the engine running. So I want to show you where the belts are, what they look like, how to adjust them and how to tell a bad belt from a good belt. As you can see these are your drive belts, this is the AC drive belt it drives the AC compressor, this is the alternator drive belt it drives the alternator, if you look down here you can see this is where the adjustment is on that AC compressor belt, if you look right here this is the top adjusting bolt for adjusting the alternator either up or down to tighten or loosen the belt. There’s a bolt down here that locks the alternator in place and this bolt is the pivot bolt for the alternator. So if you’re going to let’s say remove your alternator belt you’d have to remove these covers, loosen this bolt, loosen this bolt that’s underneath this cover and adjust this bolt to either lower the alternator or raise the alternator, if you’re belt was too loose you’ll pull up on the alternator, if the belt was too tight you’ll

replace alternator belt.you need to loosen alternator upper and lower belt then push alternator forward to slip off drive belt.if you have the prizim GSI. you need to raise and support the vechicle safely.remove the power steering and air conditioning drive belts.then loosen the lower mounting bolt and nut from the alternator bracket.then remove the alternator drive belt.

The battery needs replacing.Also it confirms that alternator is the issue too.

Check the help links mentioned below.This will help you to get the alternator tested and confirm the problem :----

Click the link :----
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How to test and replace Alternator on Audi A4 Car models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-test-and-replace-alternator-on.html

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How to inspect Vehicles Alternator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-inspect-vehicles-alternator.html

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How to Test Vehicles Alternator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-test-vehicles-alternator.html

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How to Service Vehicles Alternator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-service-vehicles-alternator.html

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How to Replace Alternator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-alternator.html

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How to monitor Vehicles charging system?

http://repairhelpcenter.blogspot.com/2011/11/how-to-monitor-vehicles-charging-system.html

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Car Alternator making noise?

http://repairhelpcenter.blogspot.com/2011/11/car-alternator-making-noise.html

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Car Alternator Working Intermittently?

http://repairhelpcenter.blogspot.com/2011/12/car-alternator-working-intermittently.html

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Car Alternator Bearing Makes Grinding noise?

http://repairhelpcenter.blogspot.com/2011/12/car-alternator-bearing-makes-grinding.html

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How to Inspect Alternator Drive Belt?

http://schematicsdiagram.blogspot.com/2011/12/how-to-inspect-alternator-drive-belt.html

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How to replace Alternator Drive Belt?

http://repairhelpcenter.blogspot.com/2011/12/how-to-replace-alternator-drive-belt.html

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How to change Alternator on Peugeot

http://www.howtorepairguide.com/2012/11/how-to-change-alternator-on-peugeot.html

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I tried to find a tutorial video that could better show the process but I couldn't locate one in my database. Hopefully, my written instructions will suffice.

1. Disconnect the negative battery cable.
2. Rotate the drive belt tensioner away from the drive belt and remove the drive belt from the alternator pulley.
3. Detach the electrical harness connectors at the alternator assembly.
4. Disconnect the positive battery cable and remove the nut and washer.
5. Remove 2 front alternator bolts.
6. Remove the rear alternator support bracket retaining bolts and the support bracket.
7. Remove the alternator from the vehicle.

To install:

1. Place the alternator in position and loosely install 2 front alternator retaining bolts.
2. Install the alternator bracket and 3 alternator bracket bolts. Tighten to 84 inch lbs. (10 Nm).
3. Tighten 2 front alternator retaining bolts to 19 ft. lbs. (26 Nm).
4. Connect 2 electrical harness connectors to the alternator assembly.
5. Connect the positive battery cable and install the nut and washer. Tighten the nut to 72 inch lbs. (8 Nm).
6. Rotate the drive belt tensioner away from the drive belt and install the drive belt on the alternator pulley.
7. Connect the negative battery cable.
8. Start the engine and check for proper charging system operation.

ALTERNATOR BELT NEED ADJUSTING AND REPLACING IT GLAZED. WHEN DRIVE BELT GET GLAZED SHINY CAUSE IT TO SLIP AND SQUEAL.REPLACE ALTERNATOR DRIVE BELT. AND ADJUST IT DRIVE BELT TENSION BY TIGHTEN THE UNTIL YOU CAN PRESS DOWN ON THE BELT IN THE LONGEST RUN. YOU NEED TO PRESS DOWN BELT AND GET A 1/4 TO 1/2 INCH DEFLECTION IN BELT.THE BELT CANT BE TOO TIGHT WHERE WHEN YOU PRESS DOWN AT IT WONT GIVE IN NONE TOO TIGHT, WILL CAUSE PREMATURE ALTERNATOR BEARING FAILURE IF DRIVE BELT TOO TIGHT.

Disconnect battery ground cable
Remove the ground wire (black) from the alternator
Disconnect the positive wire (red wire held on by a retaining nut) from the back of the alternator
Now disconnect the wire harness from the alternator
Remove the drive belt
NOTE: Some models use a belt tensioner that applies tension to the drive belt.
The best tool to use for this job is the serpentine belt too.
If you can borrow one from a neighbour you can get one at PartSource. (Part# 648451)
On other models you will have to loosen the adjusting bolt on the alternator bracket.
If you're not sure about how to remove the drive belt, visit your local PartSource for free print outs of car specific instructions.
Take off the mounting bolts from the alternator bracket
Now remove the alternator from the engine compartment

Installing Your New Alternator
Put the alternator in the engine compartment
Install the mounting bolts that connect the alternator to the alternator bracket
Connect the alternator wiring harness
Now connect the positive wire to the alternator
NOTE: Your new alternator should come with a retaining nut.
Remember to remove the nut before you install the positive wire.
If it doesn't keep the old nut.
Connect the ground wire to the alternator
Now install the drive belt
This is a great time to replace your old worn out belt. When inspecting your old belt look for signs of cracking, oil soaked, hard glazed, splitting or fraying.
All these signs mean it's time you replaced your drive belt.
If your vehicle no longer has the belt routing diagram under the hood, visit your local PartSource for a free print out of the belt routing diagram.
Reconnect the ground battery cable .

The alternator drive belt is loose or worn out. If the alternator is driven off a serpentine belt then replace the belt. Inspect the serpentine belt tensioner and replace if necessary. On an 18 year old car it is more than likely defective. If it is driven off a standard drive belt then adjust the alternator to tighten the belt. Inspect the belt for fraying and or cracks and replace if you see any.

Removing the Alternator
Disconnect battery ground cable
Remove the ground wire (black) from the alternator
Disconnect the positive wire (red wire held on by a retaining nut) from the back of the alternator
Now disconnect the wire harness from the alternator
Remove the drive belt
NOTE: Some models use a belt tensioner that applies tension to the drive belt.
The best tool to use for this job is the serpentine belt too.
If you can borrow one from a neighbour you can get one at PartSource. (Part# 648451)
On other models you will have to loosen the adjusting bolt on the alternator bracket.
If you're not sure about how to remove the drive belt, visit your local PartSource for free print outs of vehicle specific instructions.
Take off the mounting bolts from the alternator bracket
Now remove the alternator from the engine compartment There. You've removed the alternator. How easy was that?
Installing Your New Alternator
Put the alternator in the engine compartment
Install the mounting bolts that connect the alternator to the alternator bracket
Connect the alternator wiring harness
Now connect the positive wire to the alternator
NOTE: Your new alternator should come with a retaining nut.
Remember to remove the nut before you install the positive wire.
If it doesn't keep the old nut.
Connect the ground wire to the alternator
Now install the drive belt
This is a great time to replace your old worn out belt. When inspecting your old belt look for signs of cracking, oil soaked, hard glazed, splitting or fraying.
All these signs mean it's time you replaced your drive belt.
If your vehicle no longer has the belt routing diagram under the hood, visit your local PartSource for a free print out of the belt routing diagram.
Reconnect the ground battery cable .

2000 Ford Truck Expedition 4WD 4.6L EFI 8cyl

Alternator - REMOVAL & INSTALLATION

4.2L Engine

1. Disconnect the negative battery cable.
2. Disconnect 2 alternator and voltage regulator electrical harness connectors at the alternator. To disconnect push-on type terminals, depress the lock tab and pull straight off.
3. Remove the positive battery cable nut and remove the positive battery cable at the alternator.
4. Rotate the drive belt tensioner away from the drive belt and remove the drive belt from the alternator pulley.
5. Remove 3 alternator retaining bolts and remove the alternator.

To install:

1. Place the alternator on the engine and install 3 alternator retaining bolts. Tighten the bolts to 18-22 ft. lbs. (20-30 Nm).
2. Rotate the drive belt tensioner away from the drive belt and install the drive belt on the alternator pulley.
3. Connect 2 alternator and voltage regulator electrical harness connectors.
4. Connect the positive battery cable to the alternator and install the nut and washer. Tighten the nut to 84 inch lbs. (10 Nm).
5. Connect the negative battery cable.
6. Start the engine and check for proper charging system operation.

4.6L, 5.4L and 6.8L Engines



Fig. 1 Detach the connectors from the alternator



Fig. 2 Remove the nut and the battery cable from the post on the rear of the alternator



Fig. 3 Remove the 2 front alternator mounting bolts and ...



Fig. 4 Remove the alternator from the engine by carefully lifting it up and...



Fig. 5 ... out of the engine compartment

1. Disconnect the negative battery cable.
2. Rotate the drive belt tensioner away from the drive belt and remove the drive belt from the alternator pulley.
3. Detach the electrical harness connectors at the alternator assembly.
4. Disconnect the positive battery cable and remove the nut and washer.
5. Remove 2 front alternator bolts.
6. Remove the rear alternator support bracket retaining bolts and the support bracket.
7. Remove the alternator from the vehicle.

To install:

1. Place the alternator in position and loosely install 2 front alternator retaining bolts.
2. Install the alternator bracket and 3 alternator bracket bolts. Tighten to 84 inch lbs. (10 Nm).
3. Tighten 2 front alternator retaining bolts to 19 ft. lbs. (26 Nm).
4. Connect 2 electrical harness connectors to the alternator assembly.
5. Connect the positive battery cable and install the nut and washer. Tighten the nut to 72 inch lbs. (8 Nm).
6. Rotate the drive belt tensioner away from the drive belt and install the drive belt on the alternator pulley.
7. Connect the negative battery cable.
8. Start the engine and check for proper charging system operation.

5.8L and 7.5L Gasoline Engines and 7.3L Diesel Engine

1. Disconnect the battery ground cable.
2. Label and detach the connectors from the alternator.
3. Release the tensioner and remove the drive belt from the alternator pulley.
4. Remove the alternator retaining bolts.
5. Remove the alternator from the vehicle.

To install:

1. Position the alternator and install the retaining bolts. Tighten the retaining bolts to 15-21 ft. lbs. (21-29 Nm).
2. Install the drive belt.
3. Attach the alternator connectors.
4. Connect the battery ground cable.

I really hope help you with this (remember rated this help) Good luck.