How To Test an Alternator on a Ford F250, Charging system problems

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  • เผยแพร่เมื่อ 24 ธ.ค. 2024

ความคิดเห็น • 87

  • @keithnoneya
    @keithnoneya 3 ปีที่แล้ว +8

    Been working on vehicles for over 30 years, you are spot on with these in vehicle alternator checks. One step that is essential on older vehicles is the battery cable test. The reason is a lot of older vehicles get corrosion in the cables and create a lot of resistance to the point that it makes for a hard start. If you have a fully charged battery, have a known good starter and the Alternator is showing a good 13.5v or above and you have a hard start, do the same battery cable check on the starter instead of the Alternator. If you have a more than a few volts showing on the meter you have a bad, most likely internally corroded cable. Dodge, Plymouth and Chrysler mini vans are notorious for corroded positive and negative cables low on the drivers side. Another indicator of corroded cables, and a good reason to test them, is if the positive battery cable gets really hot and you know the connections are clean. Thanks for sharing, spot on! Thumbs UP! Best Wishes & Blessings. Keith Noneya

  • @Mike_In_Idaho
    @Mike_In_Idaho 6 หลายเดือนก่อน +1

    Great video! I loved all the visual demonstrations along with the simple explanations. You're great!!

  • @Auriam
    @Auriam 5 หลายเดือนก่อน +1

    Great video, simple explanation, and you showed everything you did. And clear voice. Thanks!

  • @dcp4988
    @dcp4988 2 ปีที่แล้ว +1

    Dude, you rock. Thank you. Going to do this now. I had my battery light turn on 2 days ago and gauge drop to about 10v on the dash. It still starts up good the past two days. But flickers sometimes. AC is acting up too. Hope its either a loose connection or if need to, replace alt or battery. Really need my AC working strong as it has, especially here in TX when its over 100*.

    • @KITS_Auto_and_Truck_Repair
      @KITS_Auto_and_Truck_Repair  2 ปีที่แล้ว +1

      DCP Thanks! Good Luck with your project!

    • @dcp4988
      @dcp4988 2 ปีที่แล้ว

      @@KITS_Auto_and_Truck_Repair I'm getting over 0.5v on the wire from the battery to the alternator. While running, had the red on Batt + and black lead on the B+ on alt. Is that a bad wire?

    • @KITS_Auto_and_Truck_Repair
      @KITS_Auto_and_Truck_Repair  2 ปีที่แล้ว

      @@dcp4988 yes or a corroded connection!

  • @drrjim
    @drrjim 3 ปีที่แล้ว +2

    Great job. Good way with words, good English too.

  • @rconcord9
    @rconcord9 2 ปีที่แล้ว +1

    Good video explaining the basics in a way the average person could understand 👍

  • @jeremymiller7826
    @jeremymiller7826 2 หลายเดือนก่อน +1

    Excellent description, thank you.

  • @rickr2336
    @rickr2336 3 หลายเดือนก่อน +1

    I was looking at testing the small wires in the plug.

  • @kendrickgreen4128
    @kendrickgreen4128 5 หลายเดือนก่อน +1

    What is the problem if did a voltage drop test and it reads 0.22 and when I start the truck it doesn’t read over 12.6 volts and I have a brand new alternator

  • @earlnoelker8462
    @earlnoelker8462 9 หลายเดือนก่อน +1

    Very good video. Nice and slow and very thorough.

  • @davidchase7296
    @davidchase7296 9 หลายเดือนก่อน +1

    Very good very clear and helpful, to the point and easy to understand 🤙

  • @jayfetterman7601
    @jayfetterman7601 3 ปีที่แล้ว

    Great video. How does this change in my 2006 F-250 diesel dual battery system? Are the steps the same but performed on both batteries?

  • @creed7179
    @creed7179 8 หลายเดือนก่อน +2

    Great job explaining

  • @bryancarosi2386
    @bryancarosi2386 2 วันที่ผ่านมา

    So whats the likely issues when you get 11.98 volts, only, running?? 12 volts while off, both at battery and alternator. 1997 F250 HD 5.8l 4spd auto

    • @KITS_Auto_and_Truck_Repair
      @KITS_Auto_and_Truck_Repair  วันที่ผ่านมา

      @bryancarosi2386 check your Alternator wiring, if the wiring is good, then the Alternator is defective

  • @darrylm3627
    @darrylm3627 2 ปีที่แล้ว +3

    Good Stuff,Great Tips😄👍🏿 2016 F250 6.2L

  • @stevenmcc2119
    @stevenmcc2119 3 ปีที่แล้ว +1

    I have a 2001 7.3 diesel and my gauge drops and monitor reads like it’s not charging and I tested the pigtail that plugs in back and wasn’t reading 12 volts I didn’t do the resistance test between the positive or negative yet it’s dark now and cold I took a new alternator back to store and had them swap it out bc it wasn’t charging and then the one I swapped out isn’t charging either

    • @KITS_Auto_and_Truck_Repair
      @KITS_Auto_and_Truck_Repair  3 ปีที่แล้ว

      Steven Mcc you need to check the wiring, do a voltage drop test on the wires...

    • @stevenmcc2119
      @stevenmcc2119 3 ปีที่แล้ว

      @@KITS_Auto_and_Truck_Repair how do you do that I have couple vids saved that show things how to and all that I’m goin to check some things out here soon once up

    • @KITS_Auto_and_Truck_Repair
      @KITS_Auto_and_Truck_Repair  3 ปีที่แล้ว

      @@stevenmcc2119 on this video I showed how to do a voltage drop test... follow the steps with a voltmeter and you should be able to do that, or have someone look at it for you...Good luck

    • @stevenmcc2119
      @stevenmcc2119 3 ปีที่แล้ว +1

      I think I found out that a fusible link got fried

    • @KITS_Auto_and_Truck_Repair
      @KITS_Auto_and_Truck_Repair  3 ปีที่แล้ว +2

      @@stevenmcc2119 that's good, I'm glad you figured it out!

  • @jeffdunn314
    @jeffdunn314 2 ปีที่แล้ว +1

    You do great on these videos

  • @nolancutler1881
    @nolancutler1881 5 หลายเดือนก่อน +1

    So of the two batteries I should use the passenger side battery to check alternator like this!

    • @KITS_Auto_and_Truck_Repair
      @KITS_Auto_and_Truck_Repair  5 หลายเดือนก่อน

      @nolancutler1881 You should use the battery that has the Alternator main Power wire on it!

  • @jamesmorris8685
    @jamesmorris8685 2 หลายเดือนก่อน +1

    So if you have high resistance, does that mean the alternator is bad

  • @alstevens44
    @alstevens44 3 ปีที่แล้ว

    Very Good explanation K, but how do you check if the alternator diode is bad

    • @KITS_Auto_and_Truck_Repair
      @KITS_Auto_and_Truck_Repair  3 ปีที่แล้ว

      alsteven44 thanks! you can check the diode of the alternator by checking how much AC voltage the alternator is putting out!!! the spec is 0.5 ac voltage for most applications

  • @lordvader4628
    @lordvader4628 ปีที่แล้ว +1

    Great explanation! Thank you.

  • @Luna-dt1nt
    @Luna-dt1nt 2 ปีที่แล้ว +2

    hi i have 97 dodge ram 2500 diesel and it has 2 batterys on each side how do i checked my alternator with those 2 batterys

    • @KITS_Auto_and_Truck_Repair
      @KITS_Auto_and_Truck_Repair  2 ปีที่แล้ว +1

      Luna 40 same process, if it has a 12 volts alternator there will be one wire that goes from the alternator to one of the batteries!

    • @Luna-dt1nt
      @Luna-dt1nt 2 ปีที่แล้ว +1

      @@KITS_Auto_and_Truck_Repair ok thx

    • @Luna-dt1nt
      @Luna-dt1nt 2 ปีที่แล้ว

      @@KITS_Auto_and_Truck_Repair when I put my multymeter to the negative cable on alternator case and the positive cable on negative battery I get a reading of 0.00 what am I doing wrong? Remember my truck has 2 batteries

    • @KITS_Auto_and_Truck_Repair
      @KITS_Auto_and_Truck_Repair  2 ปีที่แล้ว

      @@Luna-dt1nt My Pleasure!

    • @KITS_Auto_and_Truck_Repair
      @KITS_Auto_and_Truck_Repair  2 ปีที่แล้ว +1

      @@Luna-dt1nt Are you doing it with the car running? remember positive to positive and negative to negative!

  • @scottc3165
    @scottc3165 3 ปีที่แล้ว

    Great explanation. straight forward and easy. Thanks.

  • @leaannmccammon4404
    @leaannmccammon4404 2 ปีที่แล้ว +1

    Excellent explanation

  • @ritchieaguilar7505
    @ritchieaguilar7505 2 ปีที่แล้ว +1

    Very good my friend ..

  • @10via2
    @10via2 ปีที่แล้ว +1

    🎉🙏👏👏👏👌 excellent info well explained

  • @justinhebert8686
    @justinhebert8686 2 ปีที่แล้ว

    Awesome 👏🏻 awesome video brotha
    You helped me 💯% diagnos my problems and perfectly explained on how battery alternator operates 👍🏼

  • @shanevan5336
    @shanevan5336 3 ปีที่แล้ว

    Very helpful. Thank you.

  • @taylorledford4506
    @taylorledford4506 3 ปีที่แล้ว

    Great video, thank you

  • @Mannypac94
    @Mannypac94 2 ปีที่แล้ว +1

    Hello Mr. George?

  • @michaelcarman-yv9tm
    @michaelcarman-yv9tm 4 หลายเดือนก่อน +1

    nice

  • @cloverlonebroodmarefarm3428
    @cloverlonebroodmarefarm3428 2 ปีที่แล้ว +1

    👍

  • @johnwalker863
    @johnwalker863 3 ปีที่แล้ว

    1 problem...if weak charge, that doesn't necessarily mean alternator is bad. There's a bit more to it Than that bad

    • @KITS_Auto_and_Truck_Repair
      @KITS_Auto_and_Truck_Repair  3 ปีที่แล้ว +2

      John Walker I covered the basics on this video!! these tests can give you a good indication of where your problem might be in the charging system!!

  • @1stlast290
    @1stlast290 3 ปีที่แล้ว

    Great job thanks

  • @rgsrescue4729
    @rgsrescue4729 3 ปีที่แล้ว

    great video.

  • @duaneadkins7410
    @duaneadkins7410 9 หลายเดือนก่อน +1

    Way to much commentary