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Just install new battery. I was check charging voltage - starting 14,18V and after 3 minets drop to 13.36V than lowered up to 12,28V in next 20 min. That look like voltage regulator problem or ECM directional charging signals out of spec... or may be alternator get some problem. After two days voltage in system drop to 11,93V, but car still started even from distance start system. Please help if somebody meet same situation before.
Voltage regulator or bad alternater in the mornings check to see if the alternater is warm before you start it if it is the alternater is draining your battery
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Tighten the electrical connections on the alternator. Check to see if the alternator is good, although in rare cases a poor internal connection on the alternator can cause this, The cable that runs from your alternator to your battery ( EITHER END OF IT ) could be mostly broken...not all the way...just hanging by a few threads. Tighten your battery cables. Your car's 10 years old, check for a good ground connection from the battery at the frame of the car ( no rust ). Good Luck!
For some reason the battery voltage dropped below what it takes to start. Charge battery and it should start in my experience the lights r because of not starting and the voltage
check alternator connections. with voltmeter and car at rest try battery voltage, as this is (i assume) new battery, it should show above 13v reading. now, start the car and check voltage at idle, it should be same or slighty higher than original reading, now, press accellerator to about 1500 to 2000rpm, reading shuld be higher, in range between 13.6v up to 14.4v, if reading is lower, your alternator is not charging! if description and voltages are correct,
remove battery from the car, leave for 24hrs and then measure voltage (within 0.1 of the volt minimum) make note of the reading, wait for 24hrs and measure again, if there was no drop in voltage, this meant that battery is ok as well.
this will point to either, your voltage regulator or leak somewhere in installation draining the power from the battery. check all possible terminals, especialloy under the dashboard on driver side and close to console on passenger side. check boot lights and sensors.
hope this will help you - do not forget to vote if you find this info useful.
During the night or after the car sets for a while. The battery voltage will drop from the normal 13.6 to 13.8 volts when running and Charging, to between 12.3 to 12.6 volts. If the Crank Sensor is going bad, it may not operate correctly with the lower voltage. Check your Battery Voltage in the morning with a Volt Meter. If the Battery Voltage is lower than about 12.3 to 12.5 volts. You may need a new battery. Try leaving the battery on a low current Battery Maintainer overnight and see if it starts in the morning. I have seen many cars that shut down with Low Battery Voltage. Darn these New Fangled Cars and their Computers! FYI, we have never seen a Crank Sensor fail in this manner..... Check the RESTING Battery Voltage.
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.
Check all your wires that go to the starter and alternator, back to the battery. Something is not right in that circuit. You will probably need a wiring schematic to check properly. If you need anything else, please let me know. I am here to help.
, do a simple test on the charging system...check battery voltage. should be 12v or better. start engine & check volts at idle, no accessories on. volts should read 13.5 -14v. Turn on all accessories(including headlamps on high) volts should drop slightly but should not creep down. Definitely not below 12.5. If voltage drops lower than 12.5, the regulator (in the alternator) is not working. either change regulator or change entire alternator. Alternator drive belt should have sufficient tension so that alternator cannot be turned easily by hand. If it can, check belt tensioner.
It appears that the alternator is still not charging the battery.Charge the battery up,and refire the truck.Check voltage with a voltmeter,directly off the back of the alternator.Most all alternators of your year model have the voltage regulator built into the alternator.If the alternator isn't producing any voltage,then it is bad,even if it is new.I have had defective new parts before.
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