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Open Roads Forum  >  General RVing Issues

 > cleaning 7-pin receiver connector on truck

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WNYBob

Tonawanda, NY

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Posted: 09/15/21 01:22pm Link  |  Quote  |  Print  |  Notify Moderator

Don't use dielectric grease. (Google it's definition it's not what you want)

Use Contact Cleaner and Lubricant.

Gdetrailer

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Posted: 09/15/21 01:25pm Link  |  Quote  |  Print  |  Notify Moderator

Omrod wrote:

Thanks for the replies. What happens is . . . I'm traveling down the road, pulling my camper I and get: ding, ding, ding and a message saying "Trailer Connected". I dismiss the message and a little while later it does it again. It gets annoying after a while. My battery is fine no corrosion there and it doesn't look real corroded inside the plug. I was hoping there was "magic" spray with baking soda or something.


This is a different beast.

There is no magical sprays, incantations for this.

First thing is to use sandpaper, you can take a small piece, roll it up then insert it into all of the connections of the plug to shine up the connections.

Repeat this on the truck socket.

Then see if your connect while driving goes away.

You should be getting a disconnect warning before getting a connect warning each time which makes me wonder if you have an issue with your brake controller..

If you continue to get this warning you will need to start looking at the wiring on the trailer back to the brakes on the axles.

Depending on brake controller you may not have a short warning and when the short clears you get the connect warning..

If this is the case, then the brake wiring back at the axles may be the issue. Typically the manufacturers run the brake wires through the axle tubes, it lays loose inside the tube and can move around. This movement often chafes the insulation causing the wires to short..

The fix is to run new wire outside the axles and disconnect the internal axle wiring.

Another potential short issue is inside the hubs, sometimes the magnet wire gets caught between moving parts and the insulation gets worn causing a short..

In this case, you can cut and splice the wire and then make sure it is out of the way of moving parts..

dedmiston

The West

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Posted: 09/15/21 02:16pm Link  |  Quote  |  Print  |  Notify Moderator

Found this in an old old thread.

Quote:

I'm out of WD-40, so I tried some of this stuff on both ends. It worked like a champ. Thanks for the suggestion!



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Lwiddis

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Posted: 09/15/21 03:13pm Link  |  Quote  |  Print  |  Notify Moderator

Consider buying a new connector. Cleaning the OME didn’t help me but the new plug works great.


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rexlion

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Posted: 09/15/21 04:49pm Link  |  Quote  |  Print  |  Notify Moderator

Deoxit red.


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LittleBill

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Posted: 09/15/21 04:59pm Link  |  Quote  |  Print  |  Notify Moderator

rexlion wrote:

Deoxit red.


pretty much your best bet,

Deoxit





agesilaus

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Posted: 09/15/21 05:25pm Link  |  Quote  |  Print  |  Notify Moderator

prichardson wrote:

Fine emery board or if you are near your trailer, plug in and unplug several times.


Now that is a good idea! Also I find just a tiny dab of dielectric grease on the trailer side connector pins works quite well. But I will be getting some emory boards.


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LadyRVer

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Posted: 09/15/21 06:45pm Link  |  Quote  |  Print  |  Notify Moderator

I used dielectric grease and an emery board. Also took a screw driver and opened the terminals on the one plug a little. Worked for me.

bob213

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Posted: 09/15/21 07:35pm Link  |  Quote  |  Print  |  Notify Moderator

De-oxit is a cleaner, lubricant and a conductor. Best option....
Dielectric grease is a viscous non-conductive waterproof substance used to protect electrical connections from corrosion and dirt but not a cleaner and again, a NON-conductor.


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BarabooBob

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Posted: 09/15/21 08:33pm Link  |  Quote  |  Print  |  Notify Moderator

Electrical contact cleaner had my rather messy truck connection looking good with very little effort. I believe that mine was made by PB Blaster


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