What should the alternator voltage be on a Jeep Patriot?
Not knowing for sure, but…most alternators today have an internal regulator built into the brush ass’y. So, if you get 12V (+/-) with engine shut off, then with a properly operating alternator, you should see around 14V–maybe as much as 14.8.
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.
Can you replace the PCM on a 2007 Jeep Liberty?
When you’re searching for a replacement PCM, it’s important to keep in mind that PCMs are programmed for a specific make and model of vehicle. If you drive a 2007 Jeep Liberty with a 3.7-liter V6, you can’t use just any PCM. You can’t use just any Jeep PCM replacement.
Can a Saab 92 start with a bad alternator?
Dual ignition coils (the blue cylinders at the top of the picture) on a Saab 92. Before you go out and order a new battery or alternator, test some of these different systems. If your alternator, coil, battery, or starter is bad, the car probably won’t start, and it definitely won’t be drivable.
What does an alternator do in a Jeep Liberty?
The alternator’s job in your Liberty is to provide electricity as it is running. The battery stores enough voltage to be able to start the engine without the assistance of an alternator.
What should the volts be on a Jeep Liberty?
Specifically, you’ll need to set it to 20V DC. With your Liberty turned off, you’ll connect the negative side of the meter to the negative battery post or wire. You’ll then touch the positive side of the voltmeter to the positive battery wire. With the engine off, you should get a reading somewhere between 12.0 volts and 12.6 volts.
What happens when the battery dies on a Jeep Liberty?
When the battery gets so dead it will no longer be able to power your Liberty’s ignition system. As the ignition system is no longer able to produce a full powered spark, the engine will begin to sputter and stall.
What are the symptoms of a bad alternator?
Symptoms of a Bad Alternator: Jeep Liberty 1 Battery Light. 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 2 Dead Battery. 3 Stalling Engine. 4 Bearing Noises. 5 Dim headlights. 6 Electric Accessory Issues.