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  1. #1
    Jr. Mechanic
    Join Date
    Apr 2011
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    Wylie, Texas, United States
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    Default How do I test a starter without removing it?

    I think I am losing my battery, but want to make sure its not the starter. The starter is at least 10 years old and 130K miles since I haven't changed the starter myself. The truck is a 1995 with 240K miles.

    If I take the starter off to test it I will replace it regardless, so I would just as soon test it onboard if possible.

    Ideas?

    Thanks
    Maury
    95 Chevy Silverado
    Beat up by hail and a faulty tow truck
    5.7L V-8
    251,000 miles


  2. #2
    Legend

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    Feb 2008
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    Red Wing, Minnesota, United States
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    Default

    the only way i know to test it is connect it directly to a battery and justtouch the wire too it, but if you did it while still on the truck it would then engage the flywheel. I have only bench tested them. Why do you suspect a battery?
    99 K1500 Suburban LT "THE BEAST"
    Hypertech III, K&N, true dual
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  3. #3
    Jr. Mechanic
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    Apr 2011
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    Wylie, Texas, United States
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    Default

    Quote Originally Posted by vncj96 View Post
    the only way i know to test it is connect it directly to a battery and justtouch the wire too it, but if you did it while still on the truck it would then engage the flywheel. I have only bench tested them. Why do you suspect a battery?
    I suspect the battery or starter because it is turning over much slower. Kind of ruh...ruh...ruh... then ruh.ruh.ruh.ruh.ruh faster and it starts. Does that make sense? I also wonder if I can test the cranking amps with my Multitester? Sounds like a google to me.

  4. #4
    Legend

    Red Z71 Max's Avatar
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    Default

    Usually if the starter is bad it won't engage or it will intermittently. I would suspect the battery. You can get a battery load tested for free at most auto parts stores. EI.... NAPA, Advanced, AutoZone, Oreillys etc.............

    (Scott) Myrtle Beach, SC
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  5. #5
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    I had a brain fart, if you take it to Sears Auto Care, Advanced Auto, Autozone or Oreillys they can do an electrical test while the battery is still in the car, this will also test your alternater. I agree with the previous though, if your startr was going it either is working or it isnt. Also you should check all the lines going from your battery, alternater and starter for and corrosion, as this acts like an energy parasite and will give you symptoms of a dying battery. If you do find it make sure it hasnt leeched up the wires inside the insulation as well.

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