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.
How do you remove the front fender on a jeep?
Open the hood and remove the bolts along the top of the fender. In this case that is done with a torx socket. Remove the turn signal and headlight bezel to gain access to the front of the fender. TIP – Use trans fluid or brake fluid to release stubborn bolts if you forgot your penetrating oil at home.
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 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.
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.
Why does my alternator not charge my battery?
If this sensor tells the PCM that the battery is too hot, the PCM might refuse to power the field coil ’cause it thinks bad things might happen if the alternator tries to charge an overheated battery. Was this answer helpful?
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.
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.
When to use an external voltage regulator on a jeep?
For Chrysler and Dodge vehicles after 1987 and Jeep vehicles after 1991. This kit can be used on Standard and High Output Alternators with External Voltage control.
Can you use an external voltage regulator on a 1987 Dodge alternator?
This kit can be used on Standard and High Output Alternators with External Voltage control. Also, this product can be used as a wiring harness and external voltage regulator replacement kit for any 1987 and earlier Chrysler Family vehicle alternator with dual insulated brushes.
What to do if your alternator stops charging?
Great Emergency kit to keep on hand, just in case you computer stops your alternator from charging. We now provide all you need to get your Chrysler family vehicle’s charging system working or get a Chrysler, Dodge, Jeep overcharging condition back in control plus you can prevent ECU failure from installing a high output alternator.
Where can I get a new alternator for my Jeep?
Looking for a new alternator for your Jeep? Shop our wide selection of alternators for every model of Jeep vehicle. Choose your vehicle then browse our selection of original equipment and high output alternators. While you’re working on your alternator, it’s a good time to replace the serpentine belt too.
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.
For Chrysler and Dodge vehicles after 1987 and Jeep vehicles after 1991. This kit can be used on Standard and High Output Alternators with External Voltage control.
This kit can be used on Standard and High Output Alternators with External Voltage control. Also, this product can be used as a wiring harness and external voltage regulator replacement kit for any 1987 and earlier Chrysler Family vehicle alternator with dual insulated brushes.
Is there a problem with my 2000 Jeep Grand Cherokee?
No one has added a helpful site for this 2000 Grand Cherokee problem yet. Be the first! Read reviews of repair shops in your area. Enter your zip code: Search CarComplaints.com for these popular complaint phrases…
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.
No one has added a helpful site for this 2000 Grand Cherokee problem yet. Be the first! Read reviews of repair shops in your area. Enter your zip code: Search CarComplaints.com for these popular complaint phrases…
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 new alternator run over 14.5v?
Bought a replacement alternator but I am sending it back as I measured and have seen it running over 16.5V. The manual says the regulator should keep it to a max of about 14.5V. I put a brand new and fully charged battery in at the same time the alternator was changed, so I don’t think the battery can be blamed.
What should the voltage be on a Jaguar alternator?
It depends on the car and the age. You don’t specify make and model, but on Jaguars the charge control is matched to the “newer” type of battery which is calcium based and the voltage can be higher 15.5v during parts of the charging cycle.
What should the charge voltage be on an alternator?
Turn on the high beams for 10 seconds and then turn them off. Measure battery voltage across the battery posts with your DMM. You should get between 12.4 and 12.6V. This means your battery is fully charged. If you get a reading below 12.4V, charge the battery before continuing. 5b. Measure the Charging System’s No-Load Voltage
What should the voltage be on a Dodge alternator?
Read the voltmeter again. This time a reading between 14.2 and 14.6 volts is the norm. If you see anything below 14.2, your Dodge’s alternator is not providing enough voltage to keep the battery fully charged. Listen to the Dodge’s alternator while the engine is running.
What causes an alternator to go over base voltage?
If you are getting more than 2 volts above base voltage, most likely your alternator is over-charging the battery or the battery is faulty. Other potential problems are a faulty voltage regulator or a problem in the charging system wiring.
Is it normal for an alternator to not charge?
Still, it’s perfectly normal for others to see the alternator not charge at all intermittently. One test is not enough if you are diagnosing a charging system problem. All too often, the alternator is condemned as the source of the problem if only battery voltage is present with the engine running.
How many Jeep Grand Cherokee alternators are left in stock?
Only 3 left in stock (more on the way). . Only 15 left in stock (more on the way). . Only 6 left in stock – order soon. . Only 8 left in stock (more on the way).
When did the Jeep Grand Cherokee get redesigned?
The Jeep Grand Cherokee was redesigned for the 1999 model year; the 2000 models have minimal changes. This model is also known as Jeep WJ. Answered! View the answer I have this problem too
When to replace the alternator in a Jeep Grand Cherokee?
You may need to replace the alternator if your battery keeps running down or your headlights become dimmer while driving. Determine which alternator your Jeep Grand Cherokee will need. You’ll want to be sure the new alternator is compatible with your Grand Cherokee’s engine.
When to replace the alternator on a Kia Sorento?
If you got 14.2 or more volts, the alternator is charging fine. If it’s still showing in the 12’s, it’s time to replace the alternator. If it’s producing a voltage level in the 13’s, go ahead and take it into a parts store and have it tested.
What kind of engine does a Jeep Grand Cherokee have?
Models made from 1999 to 2004 may be equipped with a 2.7 L OM647, 3.1 L 531, 4.0 L PowerTech, or 4.7 L PowerTech engine. Models built after this date can have a 3.0 L OM642, 3.7 L PowerTech, 4.7 L PowerTech, 5.7 L Hemi or 6.1 L Hemi. Disconnect both battery cables with a socket wrench.
What are the symptoms of a bad alternator?
In rare occasions the service engine soon light may light up. Also, some vehicles have an “alt” light that specifically tells you there is a problem with the charging system, and not the battery itself. Outside of the battery warning light, a dead battery is the most common symptom of a bad alternator.
How many volts does a jeep alternator have?
With an output of between 13.5 and 14.8 volts, a new alternator keeps your battery fully-charged and allows you to run all of your electrical systems at the same time, whether it’s the radio or a hydraulic snow plow.
What should battery voltage be with engine off?
With the engine off key on, it is reading battery voltage, should be 12.6 DCV. With the engine running it should be reading alternator voltage, should be around 14.4 DCV, that could vary depending on the needs of the electrical system at that time. If it is reading below 12.6 DCV with the engine running you are probably running off the battery.
What should the alternator voltage be with the engine running?
With the engine running it should be reading alternator voltage, should be around 14.4 DCV, that could vary depending on the needs of the electrical system at that time. If it is reading below 12.6 DCV with the engine running you are probably running off the battery. It will only run untill the battery dies, if the alternator is not charging.
Where can I get parts for MY 1997 Jeep Cherokee?
Jeep OEM 1997 Cherokee Parts from Thunder CDJR. Genuine Jeep parts are the smart choice for repair, maintenance, or upgrade of your 1997 Jeep Cherokee . When you choose OEM parts for your vehicle, you’re choosing to maintain the quality and reliability of your vehicle, ensuring peak performance mile after mile.
Why are Jeep Cherokee parts made by OEM?
OEM Jeep parts are manufactured by Jeep to maximize the performance of Jeep Cherokee vehicles and provide the certainty that the repair will be done right the first time. Parts that fit.