Then place the negative lead on the upper most terminal coming from the battery. Have your friend turn the key again. Look for an appropriate voltage drop. The voltage drop you see on the solenoid should match the drop you saw on the battery. The drop in voltage should not exceed a half a volt. If you do not read any voltage at all, the solenoid needs to be replaced.
If the voltage drops too much, there may be a fault somewhere in the connection, such as a crimped line from the battery to the solenoid. Include your email address to get a message when this question is answered.
Related wikiHows How to. How to. More References 8. About This Article. Co-authored by:. Jason Shackelford. Co-authors: Updated: May 6, Categories: Car Batteries and Ignitions. Article Summary X To test a starter solenoid, connect a test light to its output terminal to see if it has a current. Italiano: Testare una Valvola di Avviamento. Bahasa Indonesia: Menguji Solenoide Starter. Nederlands: Het startrelais testen. Thanks to all authors for creating a page that has been read 1,, times.
For well over an hour now I've been searching and reading numerous other sites but didn't feel confident that I understood how to proceed. This article is clear, concise and spoke layman's words. Excellent and thank you. More reader stories Hide reader stories. Did this article help you? Cookies make wikiHow better. By continuing to use our site, you agree to our cookie policy. Heather Young Nov 13, Nell Barnett Jan 15, I wish I had been allowed to take auto mechanics back in my high school days, it seems interesting and could probably have saved me a ton of cash.
Aaron Morales Jul 9, Mike S. Jul 20, The only thing I might worry about is overheating the coil in the solenoid. It's not really designed to be used for more than seconds at a time. That said, I agree that the OP is probably fine. The image is a great add! Its a great help for me, I can see the mechanics behind the question I was asking.
Makes everything much clearer. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. Is your car making a series of rapid clicks like this when you turn your key in the ignition? The good news is: this could be a simple problem to fix. Best case scenario, your battery or posts need cleaning.
Does your car make a single loud click like this when it tries to start? However, there is still a strong possibility that the issue could be simply a dirty, corroded, or drained battery. A series of slow clicks like below may be an indication of this. This could be the case even if some of your vehicles other battery features seemed to be charged. This is because most vehicles require at least 12 volts to start, however, your radio and interior lights can happily function with less than that.
A clicking engine regardless of speed or noise could be traced back to a number of malfunctioning parts. When the ignition turns on, you should see a drop in voltage. The target range for a drop of voltage is around 0. If you see significantly more or less including no drop in V , it is time to replace your solenoid.
It is also important to keep in mind that the target voltage range for a battery is around 12V. If your multimeter reads far away from this number, the problem is with your battery and not the solenoid. You have completed the steps in order to learn how to test your solenoid. Still having problems? Make sure that you get rid of all corrosion or grease on the solenoid.
Having these on the surface could be causing a loss of power throughout the vehicle. With these tips, you should be able to tell if your solenoid is getting the voltage it needs to properly power your vehicle. Happy and safe travels!
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