Archive for the ‘Electrical’ Category

13 Alternator and Battery Testing and Diagnostic Tips by Underhoodservice.com

Thursday, January 28th, 2016

Article written by Underhoodservice.com

  1. One Test Is Not Enough

If only battery voltage is present at the battery on a running engine, does this mean the alternator is “bad?” No, it does not. That only means that the alternator is not charging, but does not reveal why. Therefore, it does not prove a faulty ­alternator. All too often the ­alternator is condemned by ­technicians due to this test alone.

 

  1. Look It Up

For some, it’s normal to see as high as 16 volts for long periods at a time. For others, it’s ­normal to see as low as 13 volts. For some, a constant 13.6 volts is an indication of a problem. Still yet, it’s perfectly normal for others to see the alternator not charge at all intermittently. Some alternators are controlled only with an internal or external regulator. Some are controlled only by the PCM. Still yet, others are controlled by a voltage regulator and the PCM. Not knowing what controls what, and how it is supposed to function, can’t cause a ­misdiagnosis or cause a critical problem to be over looked. Take the time to look at the service information.

 

 

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My Heater in my car only works on one speed. How to fix.

Tuesday, November 18th, 2014

lA common problem among vehicles is heating concerns.  In this article we will discuss what occurs when your vehicle’s blower motor won’t run or will only run on one speed.  We will discuss how you can test this and fix the problem.

When your blower motor doesn’t work most people just assume that the blower motor is at fault.  This is not true and can lead you to waste money on replacing a blower motor that will not fix your problem.  In order to understand how to diagnose and fix the problem we must first understand how a blower motor circuit works.

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Checking your starting system on your vehicle

Saturday, July 19th, 2014

starterChecking your starting system on your vehicle One of the most common problems on vehicles is that they simply will not start.  There are several different factors that can affect whether or not your vehicle will start.  In this article we will discuss some simple tests that will allow you to test your entire starting system.  This will help you save money and do it yourself. Ok, the only real tool that you are going to need to test your starting system is a simple multimeter.  You can use a simple multimeter such as this ATD5536 Digital Multimeter or as advanced as this FLU885 Fluke 88 Multimeter.  Either one of these meters will work to properly check your starting system. (more…)

U Scan CP9599 Code Scanner for your Smartphone Video Tutorial

Wednesday, June 11th, 2014

KAL-CP9599 Actron U Scan CP9599 Diagnostic for your Smartphone

The New Actron U Scan CP9599 Diagnostic

Scanner for your Smartphone!

Electronic Specialties Relay Buddy 190 Tutorial

Wednesday, June 11th, 2014

ESI-191 ESI Relay Buddy 191 Pro Test Kit                          ESI-190 ESI 190 Relay Buddy

Pro Kit ES 191                              Relay Kit ES 190

 

 A Quick Video from Steve at Elecronic Specialties

 

Bartec 400SD TPMS Tool Tutorial

Sunday, January 12th, 2014

BTC-WRT400SD Wheelrite Bartec Tech 400SD TPMS

The latest in Combination TPMS Tool Technology, the TECH400SD! Improving on Bartec’s widely used TPMS Diagnostic and Programming tool, the added features will certainly help Tire Shops and Repair Facilities build their success in TPMS!

The TECH400SD has market leading coverage for the diagnosis and repair of the TPMS of Domestic and Import vehicles. Through its uniquely robust OBD cable, the TECH400SD can diagnose problems and reset the TPMS control module of Asian makes such as Nissan, Honda, Subaru and Toyota. Also, because the TECH400SD is an activation tool, it can quickly activate the TPMS Sensors during a domestic car relearn on such makes as GM and Ford.

Oxygen Sensor Tech How to replace an 02 sensor

Sunday, November 17th, 2013

How to diagnose and replace a faulty O2 sensor using a Fluke 233/a multimeter

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With gas mileage a major concern of many people today it is smart to know when you should replace your O2 sensor.

FLU-233/A Fluke 233/A Remote Display Automotive Digital Multimeter Kit

An O2 sensor or oxygen sensor sends a signal to the PCM or Powertrain Control Module in your vehicle and lets it know how much oxygen is in your exhaust.  The O2 sensor is the main source of input on the PCM control of fuel.  The O2 sensor can be misleading to the PCM however.  If the O2 sensor is not functioning properly your vehicle can be running extremely rich, causing your vehicle to lack power and have a decrease in fuel mileage.  The O2 sensor can also cause your vehicle to be running lean and can cause a dangerous situation for your vehicle engine.

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How to Replace an Automotive Alternator

Saturday, November 13th, 2010

Products_Alternator2Replacing your alternator

If your battery on your vehicle is constantly going dead forcing you to have to jump start your vehicle, it is likely that you have an alternator that is not working correctly.

The alternator on your vehicle provides voltage to your vehicle.  This voltage is created and used by your vehicle and the accessories in your vehicle.  The alternator produces more voltage than your vehicle needs and the excess voltage is then stored in your vehicles battery.  The battery will provide a supply of voltage to start the vehicle.  If your alternator is not putting out as much voltage as it should be then it will not have any excess to charge your battery, thus causing you to have a dead battery when you go to start your vehicle.

I suggest that you review this Basic Electronics article before you go ahead and replace your alternator.  A simple test that you can do is to test the voltage at your battery with your vehicle running.  You should have something greater than 13.5 DC Volts, this shows that your alternator is providing enough voltage to charge the battery.

Once you have determined that you need to replace your alternator then you can move onto the next procedure that we will discuss.

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Basic Electronics and Tools

Wednesday, September 23rd, 2009

ATD-5513bElectrical Tools

When it comes to working on vehicles something with the electrical system is bound to fail.  Having the proper electrical tools is vital to fixing the problem.

There are several different areas to discuss when it comes to electrical tools that would be used on vehicles.  We will discuss some of the basic tools needed to properly work on your vehicles electronics.  We will also try to discuss how to perform some basic electrical tests.

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