How do you replace the alternator on a Chevy S10?

Reconnect the secondary cable to the alternator by reengaging the nut. Pull back the tab from the primary cable, and then reconnect that wire. Push the wire in until the tab locks. Rotate the belt tensioner counter-clockwise once again. Replace the serpentine belt, referring to the routing guide, which is affixed near the radiator.

What should the voltage be on an alternator?

With the electric devices running and the engine running at 2000 RPM, the voltage should read 14. Test the wiring if the charges aren’t in the proper range, as the voltage reading alone doesn’t fully diagnose a faulty alternator. Assure that the vehicle is still running.

What to do if your alternator is not charging?

Access a voltmeter and start the truck. Make contact to the battery with the voltmeter and look for a reading of 14.2. Assume that the alternator is not properly charging if the reading is below 14, or higher than 14.3. Turn on the lights and the radio. Recheck the reading on the voltmeter.

How to know if your Chevy S10 has a faulty alternator?

Steps Verify whether your Chevy S10 has a faulty alternator. Access a voltmeter and start the truck. Make contact to the battery with the voltmeter and look for a reading of 14.2. Assume that the alternator is not properly charging if the reading is below 14, or higher than 14.3. Turn on the lights and the radio.

What’s the best way to remove and replace an alternator?

Follow these simple, step-by-step instructions for removing and installing an automobile alternator with common tools. Includes advice on the correct wiring as well as testing and troubleshooting tips. Sponsored by BBB Industries – makers of premium alternators and starters that meet or exceed OE form, fit and function. http://www.BBBind.com

How long has the Chevy S10 been in production?

The Chevrolet S-10 pickup endured 23 years of production in the United States. Although a few different generational designs occurred as the truck matured, one of the mainstay features of this Chevy was the accessibility of the alternator.

What kind of engine does a Chevy S10 have?

Of course, there are those who would say that’s kind of the point. The Chevy 350 engine works extremely well in the S10 and GMC S15 chassis; if nothing else, even a bone-stock 350 is a sure 25 boost in horsepower and torque over the already fairly stout 4.3-liter V-6 engine.

Can you put a 350 motor in a Chevy S10?

You may need to move or modify the core support to install it. The stock S10 axle and differential might survive for a little while if the truck was originally a V-6, but it will grenade when combined with a decent set of drag tires and more than 300 foot-pounds of small-block torque.

Where does the sensor wire go on a Chevy alternator?

The output and sensor wire (#2) should go to the main power distribution location, as shown, not to the battery. The #2 wire ensures the 14.4 or so output is fed to the entire system, eliminating any voltage drop. Adding an idiot light or diode in line to wire #1 is no big deal, and can be placed under the dash instead of in it.

Where to wire a GM 10si / 12si alternator?

Thank you just what I was looking for. gahi’s diagram is the correct way to wire a GM 10SI/12SI, and utilize all the benefits of that great design. The output and sensor wire (#2) should go to the main power distribution location, as shown, not to the battery.

Where is the alternator on a Chevy Blazer?

Discussion in ‘ The Hokey Ass Message Board ‘ started by gahi, Apr 25, 2008 . Luis 94 blazer likes this. That is the best I have seen. Very self expanitory. Excellent. I assume you could also just hook the #2 wire on the alternator directly to the battery post on the alternator? Yeah, I’m that stupid about wiring but had to ask. Thanks.

What kind of alternator does a Chevrolet S-10 use?

This combination of performance and versatility makes a reliable Chevrolet S-10 alternator all the more important. Your alternator uses the mechanical energy of the engine’s rotating crankshaft to generate electrical current through induction.

How do you wire an alternator in a Chevy?

How to Wire a Chevy Alternator. Connect the #2 terminal to the positive terminal on the battery. This terminal can also be jumped directly to the BAT terminal. This line is used to regulate the power generated by the alternator. Attach the alternator fan belt to the pulleys on the engine and alternator.

What kind of wire does a Si alternator use?

SI alternators use a three wire hookup, with the large battery stud, a brown exciter wire and smaller red voltage sense wire. The brown wire is what would typically be tied to a charge warning lamp, and is responsible for exciting the charging system.

Can a one wire alternator be used for an alt light?

The only drawback to using a one-wire alternator in GM vehicles has to do with the ALT warning lamp (idiot light) on the dash. A one-wire alternator doesn’t use the two-wire connector which supplies electrical current to facilitate use of the idiot light.

How does an alternator work on a Chevy?

The GM alternator used in all Chevrolet models is easy to install, as it is connected using only a few wires. The alternator converts the engine’s mechanical rotations into an electrical current using a pulley-and-belt system. This current is fed to the car’s battery, charging it for later use.

What kind of wire do I need to wire an alternator?

Wire the BAT terminal on the alternator directly to the positive terminal of the car’s battery. Be sure to use heavy shielded wire rated for use with a 12V DC circuit. For one-wire alternators, this will complete the electrical installation and you can skip to the last Step. Wire the #1 terminal to a key-switched ignition line.

What to do if your alternator isn’t working?

Test the wiring if the charges aren’t in the proper range, as the voltage reading alone doesn’t fully diagnose a faulty alternator. Assure that the vehicle is still running. Make contact between the rear of the alternator and the voltmeter and check the reading. Connect the voltmeter to the positive battery anode and check the reading.

What kind of alternator do I need for my S-10?

S-10 performance alternators from AutoZone output between 13.5 and 14.8 volts, which keeps your battery 100 percent charged and it runs all of your vehicle’s electrical system at the same time. AutoZone’s friendly staff are always available at any store to answer your questions and help you find the parts you‘re looking for at the right price.

What should I do if my alternator is not charging?

The alternator normally lasts longer than the battery. There are some easy steps you can go through to check the function of your alternator. Tap the alternator carefully with a hammer while the engine is runnin; if the charging goes back to normal, the coals inside it are worn out.

How can I tell if I have an alternator problem?

To differentiate an alternator problem from the battery, you will need to use a voltmeter to check for voltage. First, turn off the engine and check the battery voltage. A fully charged battery should have a reading of 12.65 volts. Next, turn on the engine and recheck the voltage. You should have a reading of 13.5 to 14.5 volts.

How does an alternator and starter work in a car?

Car & Truck Alternators and Starters Your vehicle’s battery supplies power to the starter. The starter solenoid and the starter spin the engine to get it started. An alternator then tops off the battery’s charge and powers all of your electrical accessories while the vehicle is running.

What kind of alternator should I get for my Chevy Blazer?

Your alternator plays a crucial role in how well your Chevy Blazer performs on the road. When it’s time for your next replacement, choose a Chevrolet Blazer alternator from AutoZone and enjoy a maxed-out battery output with up to 14.8 volts of power.

How do you remove an alternator from a car?

Slide the pry bar between the alternator and the bottom of the alternator bracket. Pry the alternator upward until the alternator comes out of the bracket. Remove the alternator from the engine compartment. Slide the new alternator into the bracket and match the three bolt holes up.

Where is the negative battery on a Chevy Blazer?

Every time the crankshaft pulley turns, the alternator pulley also turns. Pull the 2000 Chevy Blazer into a safe working area and shut off the engine. Open the hood and locate the battery on the driver side front of the engine. Remove the negative battery cable from the battery with the adjustable wrench.

How do you remove the air inlet from a S-10?

Remove the air inlet duct, if applicable to your S-10. Place the 3/8-inch square drive adapter into the serpentine belt tool, and insert it into the square drive on the tensioner pulley. Then pivot the tensioner to relieve the tension on the belt. Holding the tool with one hand, use your other hand to remove the belt from the alternator pulley.

Where can I find parts for my Chevy S-10?

Then check out CARiD.com! Here you will find a full assortment of repair parts for the S-10, including transmission parts, air intake parts, engine parts, exhaust parts, brake parts, driveline and axles, fuel delivery parts, ignition parts, emission control parts, engine cooling parts, and a lot of other products for a successful repair job.

How do you remove a battery from an alternator?

Detach the negative cable on the battery, loosening the nut on the terminal with a wrench. Disconnect the two electrical leads by removing the nuts with a wrench. Unplug the voltage regulator from the alternator. Loosen the adjusting bolt on the alternator with a ratchet and socket. Pull the belt off of the alternator pulley.

What’s the best way to replace an alternator?

If you find any of those issues, you’ll need to replace it. Remove the alternator from the engine bay. With the belt pulled off of the alternator pulley and the wires disconnected, the alternator should come out freely. You may need to wiggle the alternator around some things in order to remove it.