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When changing an alternator on a car, do you have to disconnect anything else besides the battery to avoid getting shocked?

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  • blancakristi Apr 30, 2010

    thank you...we replace the alternator and got a new battery...put both in and now we are not getting anything...no lights...nothing

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Hi,

Let me Tell you the Complete Procedure :-

Replacing the alternator in your Ford Escort may be required if the alternator is making grinding noises or dragging. The alternator is responsible for charging the battery as well as providing power to the ignition system, the accessories and the lights in your Escort. If the alternator stops working, the required power will begin to drain the battery and over time, you will run out of available power from the battery causing the car to stop running. If the alternator is failing but still producing some power, you may have a weak or dead battery after driving your car.

Step 1 Disconnect the negative battery cable from the battery post or terminal. Use a wrench or socket and ratchet to loosen the retaining bolt. Then remove the cable and isolate it away from the battery.
Step 2 Locate the wiring harness connectors on the back of the alternator. Remove the nut that secures the wire and ring connector on the post with a socket and ratchet. Locate the second connector on the alternator. This connector has a locking tab on it that you will need to depress then pull straight out to remove the connector.
Step 3 Locate the upper mounting bolt on the alternator. Remove the bolt with a wrench and set it aside for use during reassembly.
Step 4 Turn the front wheels on the car toward the driver's side and lock the steering by turning the key to the off position. Locate the splash shield under the wheel well and remove the retaining bolts that hold it place.
Step 5 Remove the splash shield and reach up through the opening to remove the lower mounting bolt on the alternator with a wrench. Remove the alternator through the top of the engine compartment.
Step 6 Position the new alternator in the engine compartment and align the mounting hole on the bottom of the unit with the bracket on the engine. Insert the mounting bolt working through the access hole under the wheel well, and tighten it by hand. Do not tighten it with a wrench yet.
Step 7 Position the belt over the pulley on the alternator. Then insert the upper mounting bolt. Pull the alternator away from the engine to tighten the belt then secure the upper mounting bolt with a wrench.
Step 8 Torque the upper mounting bolt to 16 foot-pounds and the lower mounting bolt to 35 foot-pounds with a torque wrench. Install the electrical connector on the rear of the alternator by plugging it into the connector. Replace the splash shield under the driver's side wheel well and replace the mounting bolts. Tighten them with a socket and ratchet.
Step 9 Install the single wire and ring connector on the post located on the alternator, followed by the retaining nut. Tighten the nut with a wrench.
Step 10 Install the negative battery cable on the negative battery post and tighten the retaining bolt with a wrench. Start the car and verify that the alternator is working by checking you dash gauges or warning lights.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Apr 28, 2010

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