Learn how to test your car's starting and charging system. Go to www.autozone.com/autozone/electrical/rotating-electrical-systems.jsp to learn more about your starting and charging system.

Get everything you need to do the job right at www.autozone.com


    • bigfordmano5

      autozone couldnt spring for a good multimeter 😂 that's a harbor freight one

      about 3 days ago

      Good advice that you sound like someone from classic films 🎥

      about 6 days ago
    • Nick Danias
      Nick Danias

      240p NOICE

      about 14 days ago

      Thank you sir

      about 15 days ago
    • Joe Sitter
      Joe Sitter

      I had charging system problems and several other intermittent electrical problems with the instrument cluster of my 2011 Cruze, Turbo LTZ.
      Instead of replacing costly parts, you should take a look at any of the fuses in both fuse boxes. The factory used fuses having silver plated pins. You will find that 100% of the fuses will have a heavy black coating on their pins. This is silver oxide and that is an electrically non-conductive ceramic material caused by silver being in contact with oxygen in the air and especially hot, damp air. The growth of the Ag2O coating over time is similar to rust (ferric oxide) formation on metal objects containing Iron. The effect to your car is to fill it with nearly 100 intermittently loose electrical connections and those will randomly confuse your car's computer software.
      Gently scrub the silver oxide off using a piece of Scotch Brite pad. Do this to EVERY fuse in both fuse panels and you'll find that scores of INTERMITTENT electronic and electrical problems all over your car will disappear. Partially lift out and then re-seat the relay switches too. This costs nothing but about 1 hour of time.
      I'm an equipment engineer working with X-ray microscopes. My old Cruze is working perfectly now, even with 190,000 miles.

      about 21 day ago
    • Faruk Khan
      Faruk Khan

      great solution

      about 29 days ago
    • AutoZone
      AutoZone In reply to Faruk Khan

      Glad we could help you out. Happy driving!

      about 27 days ago
    • Mark Sanders
      Mark Sanders

      How to check the AC current off the stater in the car

      about 1 month ago
    • praveen Gujjar
      praveen Gujjar


      about 2 months ago
    • Joshua Knight
      Joshua Knight

      I’ve been having problems with my Ford F-150 not sure where the problem lies at. It will start up just fine but will idle heavy if I let it sit it acts like it wants to die out, if I put my foot on the accelerator pedal it will automatically die out. All fluids are good including oil. All interior/ exterior lights work. I even tried a theory to jumpstart my battery but no change. Any suggestions would greatly help! I don’t know a lot about vehicles

      about 2 months ago
    • Vanessa Strouse
      Vanessa Strouse

      I was impressed by this video. He helped me find my problem in my expedition. Gave simple instructions on how to go about it.

      about 3 months ago
    • AutoZone
      AutoZone In reply to Vanessa Strouse

      Glad to hear it helped. Happy driving, Vanessa!

      about 3 months ago
    • junie santiago
      junie santiago

      I start the key in it won’t turn on but the lights come on

      about 3 months ago
    • junie santiago
      junie santiago

      My truck trun off on its own and it won’t start

      about 3 months ago
    • Andrew Atkinson
      Andrew Atkinson

      This gus helpfull reminds me of hank hill ha jp

      about 4 months ago
    • David B
      David B

      Hello mate, I see 14.7V directly from alternator but 13.4V at battery on idle. When I connect + of multimeter to + of battery and - of multimeter to the + bracket of alternator I see -1.5V which confirms the appr. diff between 14.7 and 13.4. Where is the problem? I sandpapered all terminals. And the + cable harness loom between alternator and battery is quite well isolated and very hard to reach as it passes between exhaust manifold and engine. Your help will be appreaciated.

      about 4 months ago
    • francisco romero
      francisco romero

      You never showed,,,what is or where goin the charger system ..?

      about 4 months ago
    • Frank Gary
      Frank Gary

      Never show how check chargers system
      Jajajaj aja
      Only parts

      about 4 months ago
    • Roth Henderson
      Roth Henderson

      My Ford does this every 3 months I'm starting to think it's a wiring issue🤔 I might just scrap it instead

      about 5 months ago
    • @ngel0fdeath
      @ngel0fdeath In reply to Roth Henderson

      Roth Henderson same my ford explorer gives me a lot of problems with the charging system

      about 4 months ago
    • Stephen Clark
      Stephen Clark

      This would be an awesome f****** video if my alternator I've gotten from AutoZone wasn't a complete piece of s*** to wear on the lifetime warranty have gotten seven f****** alternators in less than 3 years

      about 6 months ago
    • Joshua Wheeler
      Joshua Wheeler In reply to Stephen Clark

      Might be something else killing them

      about 4 months ago
    • Don Strickland
      Don Strickland

      Why dont u come to my house then and prove it, you are suspicious

      about 6 months ago
    • Anei Yuot
      Anei Yuot

      I love your video. Professional explanation. Thanks

      about 7 months ago
    • Womb Raider
      Womb Raider

      Very fitting that they use a Chevy for this video. Owning a GM product will force you to become a decent mechanic, unless you like paying out the rear to mechanics to fix all the problems you'll have.

      about 8 months ago
    • Be happy
      Be happy

      Wonderfull mr thx a lots.......

      about 9 months ago
    • Qiana Simmons
      Qiana Simmons

      Thank you so much this has helped me out a lot my car is making that noise so now I know it's my battery God bless you

      about 9 months ago
    • Chazz Ram
      Chazz Ram

      I only get my parts from auto zone and no place else the quality of the parts for me have always been above the rest..also like that warranty very important auto zone is the best in the business...those duralast parts are unmatched they really do LAST...

      about 9 months ago
    • Troy Slyker
      Troy Slyker

      All of my lighting (headlights, tale lights, dash lights, radio etc) pulse or flicker when the vehicle is running. I read somewhere that that is a dirty alternator? Anyone know what causes it?

      about 10 months ago
    • jun libera
      jun libera

      Thank you sir it's really helpful

      about 10 months ago
    • Javid Khan
      Javid Khan

      nice information sar

      about 10 months ago
    • ترند الشرق - Alsharq Trend
      ترند الشرق - Alsharq Trend

      please , my car have a problem wich is shown by computer examination .. Engine emmobiliser system .. .. what is this mean please could you help me

      about 11 months ago

      Finally a professional clear explanation of vehicular maintenance

      about 11 months ago

      Why did you take off your glasses right back off

      about 11 months ago