Question about Cars & Trucks
Probably you have an electric component of your car making short - circuit. Only wat to detect is doing an electronic test.
Also it might be detected by scanning computerized system but you need the electronic equipment so should find a specialist.,
Posted on May 02, 2015
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Posted on Jan 02, 2017
Put a volt meter across the battery terminals while the vehicle is running. You should read no less than 12.5 volts at idle with no accessories running and no less than that with accessories all on. Normal volts should be around 13.5. Aside from slight fluctuations, the voltage reading should not steadily drop, regardless of how long it is running. I doubt if you have a system drain if it's shutting down while driving...the alternator would compensate for that. Some charging systems incorporate the voltage regulator into the computer. If the alternator checked good by itself but the tests I recommended show otherwise, likely your problem is with the computer.
If the engine does not need to be jump started after it shuts off, you may be looking entirely in the wrong place...but you didn't mention that part!!
Posted on Oct 21, 2009
Testimonial: "Very helpful. The voltage meter read 12 and then 14. The shop I called suggested that it may have something to do with the sensor. Taking to shop"
If the battery is draining at all ,beyond 40 milli amps continuous,which is what keeps the radio clock,pcm (computer) and other devices powered up,then something is not timing out,such as windows,door locks,on the LS the radio etc. Retained memory is just that or it goes to sleep ie no current flow. I won't go into how you check current flow but it is fairly easy. The time consuming task will be to find the offender. You could pull all the fuses and replace them one at a time,but need an ampere meter in the circuit,so that's why I won't go into it. Now fuses alone are just a start and time here is limited. The LS has an awfull lot of stuff. I have a 2004. Even the Alt and a long list of things could cause this.
Posted on Feb 11, 2010
SOURCE: my kia keeps dying! 2000
WHEN TURN OFF CAR CHECK TO SEE IF RADIO TURN OFF.CHECK TO SEE IF INTERIOR LIGHTS OFF.MAKE SURE HEADLIGHTS TURN OFF.IF ALL LOOK GOOD.YOUR POWER DOOR LOCK FAULTY DRAIN POWER.FAULTY BLOWER MOTOR RELAY DRAIN BATTERY.FAULTY STARTER RELAY OR SOLENOID DRAIN BATTERY.FAULT IN THE PCM WILL DRAIN BATTERY.MANY MANY THINGS WILL DRAIN BATTERY.
Posted on Nov 08, 2010
You basically said it. Something is probably draining the system. Disconnect the positive lead off the battery and then connect a amp meter in between that lead and the positive post and check the reading. If your over 100 milliamps you have something drawing power somewhere.
Posted on Jan 03, 2011
SOURCE: Battery is new Alternator is
whats the condition of the drive belt tensioner? youll have to check with a volt meter should be anywere from 13.9 to 14.5 v ..if the drive belt is tight and you do not have 14 v at battery ...did you have the battery disconected when changing alt?? did you ground out the wrench and create sparks and possably blow the ALT fuse ?? need some more info..thanks
Posted on Jul 28, 2011
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