Question about 1995 Chevrolet Silverado 2500

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My volt gauge will read 11.5 volts under load but when i check it with avolt meter at the battery it is 13.9. is my gauge off? What can I do

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As long as your battery is showing a reading of 10.8 (engine off/key out)and 14.2 under charge,you have a sound battery.(the guage is just a guide(for info)it is NOT accurate.

Posted on Nov 06, 2010

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96 dodge ram 2500 diesel turbo good batteries, alternator good.. batteries won't charge


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Jul 05, 2014 | Cars & Trucks

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2002 bravada replaced alternator and battery. Still only showing about 10 volts on the dash gauge. Intermittently sets ABS and BRAKE lights on dash. Battery has not been a problem though. Could the...


Yes it could be could be connection at the battery term. If you have a DVOM (digital volt ohm meter) hook it to the battery turn it on 30 volt dc scale, start up the car and see what it reads.If the readings are less then 13 volts wiggle the wires at the alt. and batt. and watch the meter.

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Jaguar 1999 XJ8L battery won't start unless I


This problem could be a number of things. Let's start buy checking for light bulbs that are not going out when car is shut off, such as under hood lid, under trunk lid, inside of car that are hard to see, such as lights that usually stay on till you leave car but normally go of after a few seconds. You can tell buy waiting a while, they will be hot to touch. If this is so this is your problem.
Next check alternator, get an ohm meter, start car, set ohm meter to about 20 volts, and with car running put ohm meter cables red to positive of battery and black to negative of battery. This test should let you know if alternator is working and good if reading is between 13- 14.50 volts, if you do your alternator is good,if not alternator is problem.
Next check the battery with ohm meter. With ohm meter set the same way to 20 volts, and car off , put red lead to positive post and black lead to negative post . Your reading should be 12-12.50 volts. If reading is low 9-10 volts then the final test would be a load test. You may have to go to your mechanic, or a battery dealer for this one because not everyone has a load tester. This test will tell you if you need a new battery. They will know right away. Your problem could be a bad battery. All the above tests are for DIY. If you are not able to perform these tests yourself then go to a battery dealer they will do tests for you. GOOD LUCK.

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I think I have an alternator problem? The charge needle on the dash guage is spiking to 16 volts off and on. I put a voltmeter to the battery and it is only charged to about 11 volts. With the engine...


Hello
The normal charge of alternator on idling is about 13 to 14 volts. 12 is acceptable but keep in mind it will need attention soon. The needle fluctuates due to the revs of the alternator - there is nothing to worry about. Just look that the charge is always above 12V on idle.

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1 Answer

GOT A 99 GMC SONOMA. THE VOLT GAUGE WAS SHOWIN BETWEEN 9 & 14 VOLTS. HAD BATTERY CHECKED,THEY SAID IT WAS BAD. GOT NEW BATTERY N IT DID SAME THING. GOT ANOTHER ALTENATOR,PUT IT ON NOW IT SHOWIN BOUT...


11-12 IS GOOD WITH RUNNING NOTHING ON WHATS IT ON . NOW TURN JUST HEAD LIGTHS ON DID IT MOVE ANY MAYBE 1-2 METERS THATS FINE . DRIVE IT!!!!!!!!!!!!!!

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When the Jeep was new the volt meter read 14 volts....now the volt meter reads 13 volts with a one year old battery. Since the battery is a 12 volt battery should there be any concern that the volt meter...


It needs to be looked at,hook a volt meter to the battery,and start the engine,turn the ac on high blower,and the head lights on,the alternator should be putting out 13.65 volts to 14.25 volts,if it is any lower than this,replace the alternator,now,if the reading is not the same as in the vehicles volt meter,then the cables,positive and negative need to be replaced,the cables get old,and corrode on the inside and break down,they do not carry the current as they should.Shuold you decide to replace them,go with a larger diameter cable,both positive,and negative.

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Charging system light


Have the alternator checked,it should read at the battery 13.65 volts to 14.25 volts,with the ac on high blower,and the headlights on.If it does not read this range,replace it,have the battery checked,make sure it is good,have it load checked.Also tighten the alternator belt,or replace the tensioner if needed,and the belt.

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1 Answer

My 2002 jeep wrangler check gauges light came onand the battery gauge is below the left dot on the gauge. does that mean i have to replace the battery?


With the jeep running put a volt meter on the battery and it should be reading above 13 volts if not replace the altinator it isn't charging.You can check the fuse for the altinator first if not charging but most likely the altinator is bad.

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1 Answer

1993 Grand Prix, 3.1 L Engine, when I start it up voltage regulator shows 12 volts , when I turn on the headlights it goes to 14 volts. I have checked the alternator & starter. Both ok.


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