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I suspect that the alternator isn't charging. The battery, if in good condition and fully charged, will last a while before failing. With that in mind, I need you to check the alternator for output. It is very easy to do. All you need is a volt meter or multi meter.
Follow this link:
https://www.2carpros.com/articles/how-to-check-a-car-alternator
Here are a few links to help in general:
https://www.2carpros.com/articles/how-to-use-a-voltmeter
https://www.2carpros.com/articles/how-to-check-wiring
If you feel the vehicle is running properly, most parts stores will test the alternator output as well as load test the battery for free. You may want to do that.
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If you perform the above test and find the alternator has failed, here is a link that shows in general how to replace one:
https://www.2carpros.com/articles/how-to-replace-an-alternator
Here are the directions specific to your vehicle for replacing the alt. The attached pictures correlate with the directions.
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REMOVAL AND INSTALLATION
Charging System
Pic 1
12V 90A Type Generator
Pic 2
12V 100A Type Generator
Pic 3
REMOVAL
Pic 4
1. REMOVE DRIVE BELT
Hook SST on the hexagonal portion of the drive belt tensioner bracket, compress the drive belt tension by turning the drive belt tensioner bracket clockwise, and remove the drive belt.
SST 09249-63010
NOTE: Compress the drive belt tensioner by taking 3 seconds or more and remove the drive belt.
2. REMOVE GENERATOR
pic 5
a. Remove the bolt, and disconnect the wire clip on the wire connectors from the generator.
b. Disconnect the wire clamp from the wire clip.
c. Remove the cap and nut, and disconnect the generator wire.
d. Disconnect the generator connector.
pic 6
e. Remove the 2 bolts and generator.
INSTALLATION
1. INSTALL GENERATOR
pic 7
a. Install the generator with the 2 bolts.
Torque:
52 N.m (530 kg.cm, 38 ft.lb) for bolt A
21 N.m (214 kg.cm, 15 ft.lb) for bolt B
pic 8
b. Connect the generator connector.
c. Connect the generator wire with the nut, and install the cap.
Torque: 9.8 N.m (100 kg.cm, 87 in.lb)
d. Install the wire clamp to the wire clip.
e. Install the wire clip on the wire connectors to the generator.
pic 9
2. INSTALL DRIVE BELT
Hook SST on the hexagonal portion of the drive belt tensioner bracket, compress the drive belt tension by turning the drive belt tensioner bracket clockwise, and install the drive belt.
SST 09249-63010
NOTE: Compress the drive belt tensioner by taking 3 seconds or more and installed the drive belt.
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Let me know what you find or if you have other questions.
Take care,
Joe
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Friday, July 5th, 2019 AT 6:14 PM