How long do Jeep Wrangler alternators last?
about seven years
Alternator typically lasts about seven years, or about 100,000 to 150,000 miles, adds Waits.
How do you change a Jeep alternator?
How to Replace the Alternator in a Jeep Wrangler
- Disconnect the negative battery terminal from the battery by using a hand wrench to loosen the connection clamp.
- You next have to remove the drive belt from the alternator pulley.
- Remove the two alternator mounting bolts using a ratchet wrench.
Why is the alternator on my Jeep not charging?
Looks like the field coil of the alternator isn’t getting power. There are 3 wires attached to the alternator. One is a big fat wire that goes to the battery, this is the alternator output. The other two wires feed power to the field coil.
What should I do if my alternator wont charge?
Be careful to avoid getting caught by the alternator belt! With the engine running, there should be voltage across the terminals. Turn on the headlights to put some load on the battery, the voltage on the field coil should rise slightly. If you don’t see voltage on the field coil terminals, you might have a blown fuse.
How long does an alternator and battery last?
As a battery ages it loses its ability to hold a charge, as a rule of thumb a battery will last about three to four years. If the battery is fairly new you will need to start the engine by jump starting or charging the battery using a battery charger. Once the engine is running test the alternator in the charging system.
Why does the battery keep draining the alternator?
Battery keeps draining replaced alternator and battery and new battery… battery keeps draining replaced alternator… A car battery is used to store electrical power in reserve to be used when the car engine is started. Several conditions can occur that will cause a battery to lose its charge overnight.
What are the wires to the alternator in a jeep?
There are 3 wires attached to the alternator. One is a big fat wire that goes to the battery, this is the alternator output. The other two wires feed power to the field coil.
Be careful to avoid getting caught by the alternator belt! With the engine running, there should be voltage across the terminals. Turn on the headlights to put some load on the battery, the voltage on the field coil should rise slightly. If you don’t see voltage on the field coil terminals, you might have a blown fuse.
Is there a problem with the alternator in Liberty?
Discussion in ‘ Liberty ‘ started by jonahb1987, Jul 10, 2019 . I recently had a breakdown. At first we thought it was the alternator, so I bought a new one. Had it installed at a mechanic and the same problem would happen. After being jumped, it would start but putter out in like 4 minutes.
How can I tell if my alternator is bad?
You can check if the field coil is powered by connecting a multimeter to the terminals of the field coil, and starting the engine. Be careful to avoid getting caught by the alternator belt! With the engine running, there should be voltage across the terminals.