1999 dodge avenger the positive battery cable has three ends and two of the ends are burned like 4 inches down the cables. how do I fix them? Do I need to replace the whole cable? Thank you. Guillermo Delgado

Remove the negative cable first, then the positive one.

Start by using a proper sized wrench and remove the battery connector, then go to the starter by following the cable to the other end and disconnect it. Replace by reversing the order - far end first and battery last. Reconnect the negative cable first and the positive last.

First take the negative cable off the battery. Then the positive cable. Now the positive cable will attach to the starter with a large eyelet, so take off the nut for the cable, then remove the positive cable, the other wires that attach here simply pick up battery power at that point. Put them all back on with the positive cable in the order they were pulled off. Tighten the nut down. Clamp the positive onto the battery, then the negative.
To make the job the easiest, don't buy a generic positive cable, but buy the one specifically designed for your car. If Nissan is too expensive, buy a generic one that is the same length with the same connectors at each end. Doesn't have to be exactly the same length, but within 3 or 4 inches. The length of a wire or cable is important when considering how much power is to be applied to the starter-a considerably longer cable will just have less power available at its end.

Disconnect negative battery cable first then positive then remove battery hold down screws and install in reverse. Use rubber gloves to prevent battery acid with skin contact. I prefer using rubber pliers on negative battery cable. I feel its safer. When putting negative battery cable on, place on holding rubber part not the metal contacts.

Sounds like a short to ground, or a bad cell in the battery.
Does the battery get hot if the cables are disconnected ?

First a little more clarification would be helpful in, Why do you think the cable needs replaced? If the cable is corroded at terminal connection a new connection fitting is much more simpler than cable replacement. Nonetheless, remove the negative battery cable first, then the positive. (1)Clean the corroded area's with baking soda and water mixture (you should wear eye and hand protection- battery acid will eat through clothing in a matter of minutes).Scrub gently with nylon brush -using a wire brush can cause sparks and may cause a fire from hydrogen gas escaping form battery. Flush with clean water and your ready to start the next process. (2)Assuming you will adding a new terminal connection fitting - cut off bad fitting with wire cutters or hack saw, skin back wire about ONE inch and install new cable fitting.(3) install / reconnect battery. (4) Your cars computer will be cleared of all learned shifting patterns and other feedback information. It will revert back to factory preprogrammed settings. Average cost of replacement cable clamp $3.50. New cable cost to starter +$30.00

Happy motoring.

Battery Removal & Installation To Remove:
CAUTION
Make sure to connect the correct battery cables to the correct battery terminals. Reversing the battery's polarity may result in extensive damage to electrical components.

1. Turn the ignition switch to the OFF position.
2. Turn off all lighting and accessories.
3. Remove or disconnect the following:
   • The negative battery cable first, and then the positive cable
   • The hardware securing the battery to the tray
   • The battery cover, if so equipped
   • The battery from the tray

To Install:

1. Position the battery on the tray and install the cover if equipped.
2. Clean the battery terminals and cable ends with a wire brush.
3. Install or connect the following:
   • The battery hold down bracket and fasteners NOTE: Do not make the fastener so tight as to damage the battery.
     
   • Positive battery cable fist and then the negative cable

The third wire is shorted out to ground. Remove the positive cable from the battery, remove the third wire from the positive battery cable. Re-attach the battery cable. Whatever doesn't work now is what that third cable powered up. Since you have to replace the third wire anyway this is a good way to determine what the third wire controls.

3.3L Engine

1. Disconnect the negative (-) battery cable. Raise and safely support the front of the vehicle on jackstands. Fig. 1: Disconnect the negative battery cable
   
   
2. Remove the three bolts attaching the starter to the engine/transaxle. Fig. 2: Remove the three starter mounting bolts
   CAUTION
   Be careful when removing the starter motor mounting bolts, the motor can be quite heavy. Personal injury could result if the starter motor falls from its mounting position.
   
3. Remove the starter from the the transmission housing. Position the starter to gain access to the wiring connectors.
4. Remove the battery positive cable nut from the starter and remove the cable. Fig. 3: Remove the battery positive cable nut from the starter and remove the cable
   
   
5. Disconnect the push on solenoid connector.
6. Remove the starter from the vehicle. To install:
   
7. Clean all wire terminals of dirt, grease or corrosion.
8. Attach the electrical wire connectors and secure with the mounting nuts. Tighten the starter solenoid B+ nut to 90 inch lbs. (10 Nm) and the solenoid wire-to-starter nut to 55 inch lbs. (6 Nm).
9. Hold the starter motor in place, then secure in place with the 3 attaching bolts. Tighten the bolts to 40 ft. lbs. (54 Nm).
10. Lower the vehicle.
11. Connect the negative (-) battery cable.

3.5L Engine

1. Disconnect the negative battery cable.
2. Raise and support the vehicle.
3. For easier servicing, do not remove the wiring from the starter motor at this time.
4. Remove the three bolts attaching the starter to the engine. Fig. 4: Remove the three bolts attaching the starter to the engine
   
   
5. Remove the starter solenoid assembly from the transfer housing. Position the starter to gain access to the wiring connectors.
6. Remove the battery positive cable nut from starter and remove the cable.
7. Disconnect the push on solenoid connector.
8. Remove the starter from the vehicle. To install:
   
9. Clean all wire terminals of dirt, grease or corrosion.
10. Attach the electrical wire connectors and secure with the mounting nuts. Tighten the starter solenoid B+ nut to 90 inch lbs. (10 Nm) and the solenoid wire-to-starter nut to 55 inch lbs. (6 Nm).
11. Hold the starter motor in place, then secure in place with the 3 attaching bolts. Tighten the bolts to 40 ft. lbs. (54 Nm).
12. Lower the vehicle.
13. Connect the negative battery cable.

Disconnect the - battery cable
Raise and support vehicle
Disconnect wiring harness at starter
Remove mounting bolts
Remove starter
My Guess would be if you look underneath by the rear of the motor you should see a round object about 8 to 12 inches longand 4 to 6 inches in diamiter. if i am right all you need to do is take a wrench and take out the bolts!
More specificallyOn a 3.3l engine the starter is about mid-engine on the driver's side. Follow the positive battery cable down to help locate it.

• Always start by disconnecting the negative battery cable. A memory saver that uses a 9-volt battery and plugs into the cigarette lighter is useful as it retains computer and radio information.
• You'll need to take the usual safety precautions about jacking up a vehicle, including using jack stands.

The starter is held in with three bolts. If I recall, they are 15mm heads. I was only able to use a socket on one of them, the other two required a wrench and more time. Small hands are helpful. Once the three bolts are out, you'll need to unbolt the battery cable and unplug the solenoid wire. When reinstalling, do not over-tighten the battery cable bolt or you can damage the new starter.

Sounds like the solenoid not grounded if you try to start and all it does is click then the solenoid is not grounded and if it's built on to the starter which it might be you might have to replace the starter. Try cleaning the wires going to the starter before you buy a new they may be corroded.