Josh B. Junior Member. Just wanted to see if anyone had any advice for cleaning a corroded wiring harness I found while working on a battery reconditioning project. One pin is corroded pretty badly on the harness that sits near the blower fan.
I think this is the culprit giving me a P0A84 error hopefully. I'm hoping I don't have to fully replace it.
Can I just use a spray cleaner, like Deoxit and a toothbrush or is there a better way to do this? I couldn't spot any obvious spots water was getting in, as it looked clean and dry elsewhere on that side, so any other thoughts about how to prevent future corrosion would be helpful too.
Thanks, Josh. ChapmanF Senior Member. One of the 12 volt harnesses connecting the battery to the rest of the car or to the fan? That is, not one of the harnesses internal to the battery?
If a bit worse, you might remove the terminal from the shell and clean it a bit better. Is it a pin or sleeve terminal? If a sleeve, of course, you can get the outside nice and shiny but that won't be where it matters.
For popping a terminal out of the shell, your wiring diagram manual on techinfo. It's not always obvious, and it depends on the type of shell. If even worse than that, you can replace the terminal. I don't know if they've improved the wiring diagram manuals lately, but in mine there are sections in the back section K or L, if I remember right where you can find every connector by its position in the car and shape and color of the shell, and in the next section find the part order number for that shell.
It doesn't give you the part number for the terminals in the shell, but your dealer parts counter person can look that up from the shell number. The only way the dealer will probably sell you the terminal is with a short length of the wrong color wire already crimped to it.
So you can just cut off the old terminal several cm back, splice the wire to the repair terminal, and pop the repair terminal into the shell. If you prefer to just get the terminal naked and uncrimped and crimp it yourself assuming there's enough extra length on the existing wireyour local independent auto electrical shop will probably be able to sell you that.
Mine can, and they get them from the same dealer who won't sell them to me! Eclipsed Prius Enthusiast. If it is corroded, cleaning it won't hurt. I use CRC Electric Contact Cleaner on electrical connections, let dry for a couple of minutes, then put some dielectric grease around the inside of the connector and reattach.
This will prevent future intrusion of moisture and debris into the connector. Thanks for the replies. It's not a main hv battery harness. It's a harness attached to the fan housing but not the actual fan harness. The fan harness comes off of it. In the photo, it's the larger one.Electrical connections, especially those exposed to the outdoor elements, can be prone to corrosion. The corrosion can impede the flow of electricity and cause failure to the device that is being powered.
Most often a basic cleaning on the male and female parts can remedy the dirty situation. Generally the male parts are pins or metal probes that fit into a female socket. Most outdoor electrical connectors are small and may require a small diameter metal brush. By following a basic method you can remove the corrosion and improve the connection.
Connect a memory saver unit to the vehicle according to the manufacturer's instructions. Disconnect the negative battery cable, using a battery wrench. Wipe the connector free of any dirt or debris using the clean rag. Pull the connector apart exposing the female socket and the male probes or pins. Observe the condition of the male pins. A green or whitish powder on the pins indicates a corrosion problem. If the metal appears rusted and broken the entire plug assembly may have to be replaced.
Tear a small piece of the fine sandpaper, approximately one inch wide by two inches long. Buff or rub the pins with the sandpaper to remove the discoloration of the metal. You can wrap the small piece of sandpaper around the pin. Rotate the paper until a clean or shiny metal surface appears. Brush the metal pins with the toothbrush.
Apply a quick spray of the electrical contact cleaner to remove any dry dust or corrosion. Use vinegar to clean the pins if contact cleaner is not available. Brush the pins again to remove any left over debris. Apply a spray coating of the contact lubricant.
This will aid in keeping the corrosion at bay and increase the conductivity of the connector. Spray the contact cleaner into the female socket. Use vinegar if no cleaner is available.It is exceedingly unusual for copper wiring to become corroded, since copper is the most resistant type of wire to corrosion. So if you suspect that you have wires which are corroded, then you should check and make sure that the wires are not aluminum, rather than copper.
Removing corrosion from a copper wire is a complex process, as it is so rare there are very few household remedies for its removal. However, if you have some basic home improvement knowledge, then you should be able to fix your copper wiring with these few steps. It can creep up inside the insulation and if you do not clean it with the rest, it will simply grow and corrode the rest of the wire all over again.
So, before you begin cleaning the copper wire, it is best to strip the insulation to make sure you are getting all of the corrosion off in one sweep. First, you should clean the corrosion off the wire using a combination of vinegar and salt.
Mix these items in a bowl, using only as much salt as will dissolve in the vinegar. Then, soak the wire in the solution for at least 10 minutes. Corrosion can lie on a piece of wire for a long time, so be careful to rub hard to get the stain off completely. Mix some baking soda with water in a separate bowl and dunk the wire into that next. Swish it around for about ten minutes before it should be done. Baking soda neutralizes the acid, leaving the wire less likely to corrode again quickly.
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If you find that neither of these methods help to get your wiring clean, then you may have to discard that part of the wiring completely, and start again a little bit further along the wire. Use a pair of pliers to trim the wire around an inch further in than the corrosion has reached.
Written by Jen S. Reviewed by Rebecca Hollada. What You'll Need.How to Easily Clean Corroded Electrical Connections & Apply Protection
Steel wool. Baking soda. Step 2 - Cleaning off the Corrosion First, you should clean the corrosion off the wire using a combination of vinegar and salt. Step 3 - Wipe it with Baking Soda Mix some baking soda with water in a separate bowl and dunk the wire into that next.Always use the goggles and safety gloves when working with solvents and the rust-removing gel compound. Your vehicle is exposed to elements of weather and the environment that can lead to rust corrosion. Rust not only affects the exterior of your vehicle, it can attack the vehicle's engine as well.
Left unattended, not only can rust compromise the structural integrity of your vehicle, it can affect your vehicle's performance as well. Rust that forms on a spark plug wire's tip, for example, can cause misfiring of the spark plug and lead to poor performance of your vehicle. Rust removal products can save your spark plug wire's tip and spare you from spark plug wire replacement or other, costly repairs.
Pull the spark plug wire with the rusted tip from your vehicle's distributor or spark plug or both -- check both ends for rust.
If two or more of the spark plug wires are rusted, work with one spark plug wire at a time before pulling out another spark plug wire. The spark plug wires are connected to the distributor in a certain order for the engine to work properly.
Connecting spark plug wires to the wrong lead can cause poor engine operation. Push the spark plug wire tip out of the spark plug wire's protective boot. Push the spark plug wire out of the boot to be able to access the rusted spark plug wire's tip. Clean the rusted spark plug wire tip, using the wire brush.
Thoroughly clean the rust on the spark plug wire's tip, using the solvent. Apply a thick and even rust-removing gel compound onto the rusted spark plug wire tip, using a spatula. Vigorously rub the rust-removing gel compound on the rusted spark plug wire's tip, using the abrasive pad. Rinse the cleaned spark plug wire's tip with water and ensure that there is no rust-removing gel compound residue left on the spark plug wire's tip.
Reinsert the spark plug wire's protective boot to cover the spark plug wire tip. Reinstall the spark plug wire to the vehicle's engine and reconnect it to the spark plug. Move to the next spark plug wire, if necessary, following the steps accordingly. Justin Mark started writing professionally in Hunker may earn compensation through affiliate links in this story.
Warning Always use the goggles and safety gloves when working with solvents and the rust-removing gel compound. Step 1 Pull the spark plug wire with the rusted tip from your vehicle's distributor or spark plug or both -- check both ends for rust. Step 2 Push the spark plug wire tip out of the spark plug wire's protective boot. Step 3 Clean the rusted spark plug wire tip, using the wire brush.
Step 4 Clean the rusted spark plug wire tip with hot soapy water and wipe it dry using a clean rag. Step 5 Apply a thick and even rust-removing gel compound onto the rusted spark plug wire tip, using a spatula. Step 6 Vigorously rub the rust-removing gel compound on the rusted spark plug wire's tip, using the abrasive pad. Step 7 Rinse the cleaned spark plug wire's tip with water and ensure that there is no rust-removing gel compound residue left on the spark plug wire's tip.
Step 8 Repeat steps 3 to 7 if there is still some rust left on the spark plug wire's tip. Step 9 Reinsert the spark plug wire's protective boot to cover the spark plug wire tip. Share this article.
best way to clean a multi plug on my engine harness in my boat.
Justin Mark. Show Comments.Dan has been a licensed journey-level electrician for some 17 years. He has extensive experience in most areas of the electrical trade. Eventually, many electrical connections will need cleaning, particularly if they are not used frequently. The charger connection in your phone will probably remain clean for a long time simply because it is used every day, but others are so seldom disconnected that dirt and corrosion can build until good contact is no longer possible.
Chief among these are the connections on automobiles, both battery and other electrical connectors such as a plug for trailer lights. Exposure to the elements coupled with a lack of use almost guarantees that problems will arise.
Electrical connectors in the home are usually easily cleaned with a simple spray of contact cleaner, available at any electronics store such as Radio Shack, but truly dirty or corroded connections on your car are another matter. This article will describe how to clean those connections that are beyond being helped by electronic contact cleaner, particularly those on a car.
Note: It should be mentioned that it is not a good idea to try to clean the connections on a household outlet; simply replace the outlet rather than trying to clean it. Home light switches are the same; simply replace the light switch rather than try to clean it. The reason in both cases is the same—poor electrical connections in the wiring of your home can cause electrical fires, and however low that risk, saving a couple of dollars isn't worth it.
Chief among the culprits are the battery terminals on the car. Side terminals the battery cable is bolted to the side of the battery rather than a post on the top used on many cars today have helped somewhat, but both side and top terminals can and do corrode badly.
This is not normally the result of ordinary dirt or grease, but corrosion from the result of acidic vapors from the battery. It's going to take a little more than rinsing them off to clean these special connectors. A note of caution here: That white stuff in the photo below is the result of acid vapors from the battery. It is not violently acidic like pure battery acid, but it is acidic, and sensitive skin or clothing can be burned by prolonged contact.
Rubber gloves are a wise precaution, and you should immediately and thoroughly rinse any clothing that comes in contact with it. The natural reaction to getting some on your hands will be to wipe your hands on your pants, forget about it and wash those pants a day later, whereupon you will have holey pants.
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Don't wipe your hands on your clothing. Using appropriate wrenches never simple pliers remove the batter terminal from the battery, taking care not to get the white powder on you, your clothing or your car. Using a paper towel or preferably a disposable rag, wipe most of the corrosion off the terminal. Dispose of the towel or rag immediately Leaving it sitting around while you work is a good way to get acid on your clothes or car finish. Likewise, be very careful where tools used are set down, and make sure to thoroughly wash them in soap and water when you are finished with them.
Fill a small bowl about half full of warm water and add baking soda to the point that it is completely saturated and will no longer dissolve any more of the baking soda. There should be a teaspoon or more of the baking soda left undissolved in the bowl. Put the battery terminal, wire and all, into the bowl and gently swirl it. As the dissolved baking soda is used up in the chemical reaction going on, more will dissolve to replace it.
If necessary, replace the water and soda with more as it becomes too dirty or if there was insufficient soda to clean the terminal. Wipe the terminal dry and use a wire brush to shine it up, removing the very last of the corrosion.Log in or Join.
Adventure Rider. Dismiss Notice. Become a site supporter for a free shirt and ad free viewing. When removing my gas tank the other day I had to use a pliers to pull apart the electrical connector from the tank.
Even with the pliers it took a good while. Upon separation the reason for the difficulty was obvious. The 4 pins and their sockets were covered with the blue-green corrosion common to copper connectors. I'm amazed the connection was functional--although recently i. As these connections are either down in a recess pins or are a tiny tunnel sockets it is extremely difficult to use a fine grade sand paper to restore their normal surface.
Does anyone have a recommendation on an easier way to remove the corrosion from this electrical connector? I have an electrical contact cleaner but it cautions not to use it around plastic. SkiFly01Jun 12, ADV Sponsors. Trick is to get everything clean and dry. I apply the solution with an old toothbrush, then flush with water, then dry with compressed air.
Protect yourself from spray, especially your eyes. Once surfaces are dry and polished, I use an electrical contact paste to prevent future corrosion. I make a practice of keeping all electrical contacts clean and protected whenever I'm doing any work on my bikes, whether they show signs of corrosion or not. I hope that helps. Good luck, and do good work. Dan-MJun 12, Contact cleaner is made to order. Wurth's Contact OL is an excellent product but there are others as well.
I think the plastic warning is about cosmetic damage to shiny surfaces. I've used it plenty on plastic electrical connectors without any issues. JarvisJun 12, There's a tool you can use to unseat the pins from the connector. All that you ever wanted to know Soak in PB Blaster and clean off with contact cleaner. JOPJun 12, And fill the connectors with dielectric grease before reassembly to avoid having to do it again in a week I made a tool for this very problem using a cotter key.
I did this by cutting one leg of the key short to expose the remaining part of the key. I then shaped the remaining part of the key with a bench grinder so that it would just fit within the tangs of the female connector and provide a little tension when this tool was inserted into the connector.
I left the rough surface made by the grinder alone so that it would file the female connector tangs. I don't think you'll have to since the connectors are usually made of softer material than the key.When electrical wires are left alone too long in the elements, the metal in the wires can corrode.
Electrical wires are usually made from copper and, as such, prone to oxidation. If connected to a battery, the subsequent corrosion can take the form of acid leakage.
The electrical wires will appear to have a white or greenish powder coating on them, and they will lose their conductive properties. This can be very bad if something that is putting out a lot of electricity now has no place for it to go. Read on to learn how to clean corroded electrical wires. When dealing with electrical wires, you must be safe. Turn off the circuit breaker at the main panel for the power line feeding electricity for the area where you are going to be working. Use the current tester to make sure there is no power coming through.
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Wear rubber gloves and safety glasses while you work as the corrosive residue can mildly burn your skin or eyes. Use your screwdriver to remove the faceplate over the electrical outlet you are working or remove the cover to the electrical box.
If you are working on an electrical box you will need to remove the plastic covering to gain access to the electrical wires. Locate the screws and remove them all then remove the covering.
You will be able to determine if the electrical wires are corroded by their discoloration. Detach the wires from the contact points and work one at a time so that you do not connect the wires incorrectly when you are finished. Use the wire brush over the electrical wires.
Use as much force as you need because you will not damage the electrical wires. The point of the wire brush is to remove any corrosive material that is on the electrical wire. You should also use the wire brush on the contact point because the corrosive material could spread much faster. Mix several tablespoons of baking soda into a cup of warm water and stir until the baking soda has been dissolved.
Dip the toothbrush in the mixture and then scrub the electrical wire and the wire connected with it. The mixture will begin to fizz on the corroded metal so do not be alarmed. Once the fizzing has stopped, the wire and connector are mostly free of corrosion.
You may repeat scrubbing if you like until the wire and connector do not produce fizzing. Once you are satisfied with the results, the wires can be reattached to their terminals and using new connectors to reconnect wires. The electrical box can then be closed back up. We welcome your comments and suggestions. All information is provided "AS IS.