How do I know if my alternator or voltage regulator is bad?
Symptoms of a bad voltage regulator may include:
- High voltage output.
- Low voltage output, sometimes.
- No voltage output.
- Lights dim or flicker.
- Faulty high-beam headlamp bulbs.
- Engine working erratically (weak or flickering ignition system)
- Adding water to the battery frequently.
How long does an alternator last on a Jeep Wrangler?
about seven years
Alternator typically lasts about seven years, or about 100,000 to 150,000 miles, adds Waits.
How do you tell if its your alternator or your battery?
An illuminated dashboard light can indicate a problem with an automobile charging system. However, a very simple way to check if the alternator is working is to run the car and disconnect the positive terminal of the battery. If the vehicle stops running, then you probably have a bad alternator.
How much is an alternator for a Jeep?
Jeep Wrangler Alternator Replacement Cost Estimate. Labor costs are estimated between $62 and $78 while parts are priced between $319 and $516. This range is based on the number and age of Jeep Wrangler’s on the road.
How much does it cost to replace an alternator in a Jeep?
How much is an alternator for a Jeep Grand Cherokee?
Jeep Grand Cherokee Alternator Replacement Cost Estimate. Labor costs are estimated between $44 and $56 while parts are priced between $324 and $383.
What are the symptoms of a bad alternator in a Jeep Wrangler?
Here are the most common symptoms of a bad alternator in a Jeep Wrangler: The battery light is designed to tell you that there is not enough voltage to properly charge the battery, or that the battery itself is not holding the proper voltage. In rare occasions the service engine soon light may light up.
Where are the fuses on a jeep alternator?
If you don’t see voltage on the field coil terminals, you might have a blown fuse. The field coil is powered by a box called Powertrain Control Module, and there are 3 fuses that might be of interest, numbered 6, 19, and 26 according to the schematic (see below).
Can a bad alternator cause a bad PCM?
If these are all good, then you need to check the wiring between the PCM and the alternator, or the PCM itself may have a problem. Another possibility is a bad Battery Temperature Sensor.
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.
