Question about Cars & Trucks

2 Answers

Why is voltmeter reading high

We replaced the battery and now it is reading high

Posted by Kari Sell on

Ad

2 Answers

Vernon Taylor

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Cars & Trucks Master
  • 7,190 Answers

Do you mean a voltmeter installed in the car or a separate voltmeter used for testing?

You should post again and explain this point and tell us what readings you have and under what conditions?

Posted on Jan 04, 2018

Ad

Sattech

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

  • Contributor
  • 22 Answers

Redesign your question ! It tells us nothing .

Posted on Jan 03, 2018

Ad

1 Related Answer

johntunney

John Tunney

  • 887 Answers

SOURCE: voltmeter read high on the 2004 sierra and new battery put in

alternator is charging to high. need to replace it

Posted on Nov 22, 2013

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

3 Answers

Battery light on and off


The battery light means the alternator is not charging the battery. The charging system would need to be checked out when the light is on.

Feb 07, 2014 | 2001 Pontiac Montana

1 Answer

My voltmeter reads out 16/17 on my 94' Buick Park Ave. will this kill the battery?


Yes. Some voltmeters read higher volts when the voltmeter battery is low. Use a different voltmeter or put a fresh battery in the volt meter or test voltmeter against a known dc voltage to see if the reading is accurate. After this start thinking it is the alternator regulator.

Dec 20, 2013 | Buick Cars & Trucks

1 Answer

Voltmeter read high on the 2004 sierra and new battery put in


alternator is charging to high. need to replace it

Nov 21, 2013 | 2004 GMC Sierra

1 Answer

Altenator not getting power


if you mean alternator is not charging battery
a device called a voltmeter is needed to diagnose this problem
Jump start vehicle , disconnect jumpers from other car , use a voltmeter on the battery terminals to measure (red lead on + or plus and black lead on - or gnd ) have a friend rev engine slighty if voltmeter rises it's reading to 13.8 and stays there no higher you just have a bad battery you'll need to replace it but if reading moves all about your regulator is bad that will need to be replaced (usually ruins battery as well) and lastly if reading stays low and does not move up but goes down your alternator is bad that will need to be replaced

Note : when dealing with batttery on car allways shield your eyes just in case there is a fault and battery explodes , acid in your eyes is no good

Nov 12, 2013 | 1987 Ford Ranger

1 Answer

My 2005 Artic Cat ATV battery wont stay charged when lights are on


maybe your alternator dont chage good.check this whit a voltmeter,on your batterie when motor is running.you chould read , some 14.50 volts.when read 12 or 13 is to low
when read 14.80 or 14.90 volts is too high

Jul 07, 2013 | Cars & Trucks

1 Answer

Will not hold charge and voltage gage is not working


Is the alternator putting out a charging current when running? Measured at alternator then at battery. If no at alternator, replace alternator if high mileage, if low mileage replace regulator. The part the harness plugs into.

If yes at alternator and no at battery, check for continuity across ammeter and check the voltmeter for a short. The ammeter should read essentially zero ohms and the voltmeter should read about 15,000 to 40,000 ohms when measured with an analog ohm meter.

If those check okay, check for a wiring fault or a blown fuse on the power distribution block or a broken fusible link. Fusible links can be checked by gentle tension on them, those that have failed will pull apart.

Jan 18, 2012 | Cars & Trucks

3 Answers

Battery light is on


The battery voltage needs to be checked.Also if battery is very old and not replaced for very long, then just get the battery replaced.Approx battery life is 3 years.If its very old battery then try new battery. But if battery is new and still battery light is on,. then either battery terminals are dirty or not connected properly or the battery voltage is low.Get the battery re charged to proper voltage.The exact battery voltage of charged battery is 12 volts..Re check and confirm with voltmeter. This should help.Thanks.Helpmech.

May 29, 2011 | 1997 Chrysler Sebring

1 Answer

Got jeep going, ran for two days then it would'nt start, this has happened several times. Checks I have done; fuses ok, no power at coil, no spark, checked all connections. I would like to test crank...


Hi, if you have no power at the coil, the sensors cannot cause that. Are you saying there is no positive voltage there or just that the timing pulses are not coming from the computer? Power is supplied to the coil by fuse 20 via the auto shutdown relay and the PCM. See diagram below. To answer your question, I've pasted some sensors tests below. The cam sensor signal is not generally used by the PCM for ignition timing but more for injector timing. If you are not getting ignition timing pulses, the crank sensor is suspect, as you have implied. If you are not getting positive voltage to the coil, suspect fuse 20 or the auto shutdown relay, or possibly the ignition switch itself. Please let me know if you have more questions, and thanks for using FixYa.


Crank sensor tests:
  1. Backprobe with a high impedance ohmmeter between the CKP sensor connector middle terminal and battery ground.
jturcotte_189.jpg

jturcotte_187.jpg

  1. Verify that the resistance is less than 5 ohms. If the resistance is not as specified, repair or replace the wiring as necessary and continue the test.
  2. With the ignition ON and the engine OFF , backprobe with a high impedance voltmeter between the sensor connector middle terminal and either of the end terminals.
  3. Verify that a 5 volt or greater signal is present at one of the two terminals. If not as specified, repair or replace the wiring as necessary and continue the test.
  4. With the ignition ON and the engine OFF , backprobe with a high impedance voltmeter between the sensor connector middle terminal and the end terminal that did not have the 5 volt or greater signal.
  5. Crank the engine and verify that the voltage reading alternates between 0.0 and 5.0 volts or verify that the voltage reading is 2.5 volts (averaging voltmeters only).
  6. If the voltage readings are not as specified, the sensor may be faulty.


Cam sensor checks
  1. Make sure that the ignition is OFF , remove the distributor cap and turn the engine over by hand.
  2. Verify that the distributor shaft turns. If the distributor shaft does not turn, the engine must be checked for proper mechanical operation.

jturcotte_188.jpg


  1. Backprobe with a high impedance ohmmeter between the CMP sensor connector middle terminal and battery ground.
  2. Verify that the resistance is less than 5 ohms. If the resistance is not as specified, repair or replace the wiring as necessary and continue the test.
  3. With the ignition ON and the engine OFF , backprobe with a high impedance voltmeter between the sensor connector middle terminal and either of the end terminals.
  4. Verify that a 5 volt or greater signal is present at one of the two terminals. If not as specified, repair or replace the wiring as necessary and continue the test.
  5. With the ignition ON and the engine OFF , backprobe with a high impedance voltmeter between the sensor connector middle terminal and the end terminal that did not have the 5 volt or greater signal.
  6. Crank the engine by hand and verify that the voltage reading alternates between 0.0 or 5.0 volts.
  7. Install the distributor cap and crank the engine with starter. Verify that the voltage reading is 2.5 volts (averaging voltmeters only).
  8. If the voltage readings are not as specified, the sensor may be faulty.


jturcotte_911.gif

Jan 26, 2011 | 1996 Jeep Cherokee

2 Answers

1996 Legacy Brighton 2.2 L, replaced the alternator 5 years ago and the battery 3-4 years ago. My battery tests at just over 12 volts, my battery light and brake light stay on. Is it the battery or...


the best way to check this is to use your voltmeter on the battery when the engine is running. with the headlights and climate control system on you should see voltmeter readings as high as 13.2 to 13.5 volts.

The only other way is to load test the battery at the cold cranking amperage printed on the battery. Or use a clamp on ammeter on the positive battery cable to see if the alternator is providing power to the battery.

Dec 11, 2010 | 1996 Subaru Legacy

3 Answers

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.

May 28, 2010 | 1996 Jeep Grand Cherokee

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

35 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

Marvin
Marvin

Level 3 Expert

85239 Answers

john h

Level 3 Expert

23504 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

6487 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...