Voltage regulator My battery is reading in the red zone-I'm assuming it's the voltage regulator. I can smell hot wires and when we unhook the battery when the jeep is running-everything gets way more power ie. heater -and the battery reads off the charts. Where is the voltage regulator on a 89 jeep cherokee laredo?

You must have smelled a live wire getting a short cicuit. You will need to check your red positive wire cables from the battery.

Blue wire to ignition switch,from alternator voltage regulator.( 12 volts ) ECU power wire, Red wire to battery terminal. Blue wire goes from alternator to the ignition switch. The voltage regulator senses the incoming voltage from the blue wire. ) it grounds the green field wire This energizes the alternator field, and the alternator begins to produce a charge and sends it to the battery via the main output wire. When the voltage regulator senses 14 volts from the blue field wire, it cuts the ground to the green field wire. Good-Day!

Blend doors control flow between hot and cold airflow . In a dual system both sides have their own separate blend doors . Possible bad switch, connection or wiring that need checking out .

Let the car run for a little while. The battery will read lower after starting because it just pulled power out to start the car. If battery light comes on or the voltage keeps dropping trace all wires and make sure connections are tight. I would think that a 95 model car would have an internal voltage regulator but if not find it and replace it. But be sure to unhook the battery first or you will short the new regulator out too.

start the engine and connect a tester to measure voltage between the terminals of the battery you should read more than 13.5 volts. If it's under that (ex. 12v) then the alternator doesn't work no matter if it's new if it's under 13.5 volts it's ruined. Assuming that the alternator regulator it's incorporated in the alternator cause if it has an external regulator, that's where the problem is.

The first thing you need to do is stop wasting your money by replacing parts. Then get a volt-ohm meter and a test light to test the circuits between the battery, the alternator, the ignition switch, the starter relay and the voltage regulator. (a.k.a. Charging System Circuits)

To start, the "B+" or "BATT" terminal on the alternator (large black wire) MUST have a solid, direct connection to the battery. Check for the proper voltage here. Then, the red wire on the alternator at the "F2" terminal should be HOT at all times. If not, you probably still have a bad fuse link that you missed. The "F1" terminal on the alternator (Light Green wire) is known as your "FIELD" wire. It comes from the "IG" terminal at the voltage regulator. It should be hot any time the key is in the ON position. If not, your voltage regulator is not working or your ignition switch is not providing power to the regulator. Finally, The "F" terminal (Red wire) at the regulator should be hot any time the ignition switch is in the ON position. This actually gets it's power from the starter relay, which gets its power from the ignition switch.

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replace your voltage regulator...hope it did'nt fry your battery ??

I had the same problem there is a inline fuse on the red wire that comes off the battery the wire goes to the starter then to the alternater after the starter there is a black bow on the red wire run your hand down it you will find it its at the back of the moter it have 175 amp fuse unbolt it go to auto zone and they have them

You have a break in the line somewhere. You need to test the circuit with a voltage meter. You should be able to find the dead zone on the wire. Just splice it and it should fix it. It is on that circuit, you know that. Just test them from the alternator to the battery. You will find the break. If you need anything, let me know. I am here to help in anyway I can. Thanks for choosing FixYa.

you might have them check and se that you are getting the right alternator.it could also be because of the battery not pushing enough volts back to the alternator that is keeping the reading off. have the battery tested and see if you have a dead cell or low reading on it