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#2006 CHEVY COBALT ALTERNATOR REPLACEMENT INSTALL#
#2006 CHEVY COBALT ALTERNATOR REPLACEMENT PROFESSIONAL#

Connect the negative battery cable to the battery.

Connect the wiring harness to the MAF sensor.

#2006 CHEVY COBALT ALTERNATOR REPLACEMENT INSTALL#

Install the air intake tube to the air filter box and the engine, then tighten the clamp. Tighten the retaining nuts to 13 inch-pounds. Adjust the belt by slightly releasing tension, if needed. Make sure the belt sits between the outer walls of each pulley. Slowly release the arm to apply tension to the belt. Rotate the tensioner arm counterclockwise and slip the belt onto the alternator pulley. Route the serpentine belt around all of the pulleys except the alternator pulley - follow the sketch you made.Replace the belt if there is any lengthwise cracking, fraying or glazing of the present. Replace either one if there is any resistance or play in the pulleys. Turn the tensioner pulley and air-conditioning compressor pulley by hand.

Plug the wiring harness into the alternator. Install the battery cable to the alternator terminal, then tighten the nut to 15 foot-pounds. Tighten the bolts to 16 foot-pounds, using a torque wrench. Hold a new alternator in position and install the mounting bolts.

Remove the alternator from the engine bay. Support the alternator by hand, then remove the three alternator bolts. Remove the terminal nut, then remove the battery cable from the alternator. Disconnect the wiring harness from the alternator.Remove the belt from the pulleys, then slowly release the tensioner arm. Rotate the tensioner arm counterclockwise. The bad thing, there is a lock pin in the shifter that activates the micro switch to release the ignition key when its turned to the off position. Place the transmission shifter in neutral and try starting the car. Locate the square hole in the belt tensioner arm, and slide the head of a 3/8-inch-drive ratchet into the hole. SOURCE: 2005 chevy cobalt key stuck in ingintion. Make a sketch of the belt routing, using a pen and paper.Remove the two nuts for the air filter housing, then lift the air filter housing out of the engine bay. Disconnect the wiring harness from the MAF sensor. Slide the tube off the housing and remove it from the engine. Loosen the clamp that secures the air intake tube to the air filter housing and the engine, using a Phillips screwdriver. Disconnect the negative cable from the battery and place it aside. Loosen the negative battery cable nut, using a socket and ratchet. Remove the trunk floor mat and set it aside. Install a memory saver unit to the vehicle according to its manufacturer's instructions.Using the new alternator to charge a low volt battery can damage the alternator. Tips: Ensure the battery is fully charged before installation. Review the installation and test the alternator output using a multimeter.Slip the drive belt back in position by using the tensioner arm and reinstall all cable connections.Install the new alternator and tighten the mounting bolts with a ratchet.Compare the new alternator with the old alternator and check whether everything matches, including the mounting bolt holes.Remove the old alternator from the bracket.Once the belt is off, unfasten the mounting bolts connecting the alternator to the bracket.Remove the drive belt from the pulley by loosening the belt tensioner.Disconnect the cable connections from the back of the alternator.

#2006 CHEVY COBALT ALTERNATOR REPLACEMENT PROFESSIONAL#

Here’s how a professional mechanic would replace a failed alternator: If any readings are out of range while the engine is running, your alternator could be problematic, and you may need a car repair.

Load engine: Start turning on accessories (like the headlights, radio, and windshield wipers.) The voltage shouldn’t drop under 12V or go above 14V.

With the engine running at around 1000 RPM, the multimeter voltage should stay within 12-14 volts.

Alternator assessment: Turn on the engine.

A good, fully charged battery should measure between 12.6 -13.2 volts.

Battery assessment: With the engine turned off, connect the multimeter leads to the battery terminals - red to the positive terminal, black to the negative terminal.

To load test your alternator, you need a voltmeter or multimeter. How Often Do I Need An Alternator Repair?Īn alternator can generally last for about 150,000 miles or 7-8 years before needing replacement. Yes, but only for a short while before the battery fails, then you’ll need an alternator repair. Here are answers to some common questions on alternator repairs: 1.