Go Back   iRV2 Forums > iRV2.com COMMUNITY FORUMS > iRV2.com General Discussion
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 04-29-2016, 09:01 PM   #1
Senior Member
Join Date: Feb 2010
Posts: 4,282
Grounds in newer vehicles

After being away from installations of land mobile radio equipment for maybe 25 years or so we are again doing some for public safety vehicles and aside from the huge increase of systems and power distribution systems we see ground connections to body parts all over the place.

They seem to be multiple small black wires crimped into very large eye connectors that are attached to the body and sometimes also have a braided cable that may go to the block or frame or some other place in the unknown.

Common observation is the area under the lugs is still painted and the nut - sert or threaded fastener bonded to the body also seems to have some over spray inside.

Where am I going...These are late model sedans and trucks and with the multiple issues being reported lately such as the anti lock brakes from Ford, my observation is these grounds can become a nightmare over time.

Our procedure back in the day was scrape off the paint and use a star washer to insure good metal to metal contact with the star washer digging in to make it better.

Current ones look like different alloy that may not be much of a concern but the screw could come loose or oxidation could creep in and create an issue.

So going forward checking factory grounds combined with some wire brushing and greasing may be in order.

Tony & Lori
1989 Country Coach Savannah SE
TQ60 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 04-29-2016, 09:05 PM   #2
Senior Member
Join Date: Feb 2010
Posts: 4,282
Here is a photo of one

This is from an electric or hybrid.
Attached Thumbnails
Click image for larger version

Name:	1461985699093.jpg
Views:	64
Size:	77.2 KB
ID:	125625  

Tony & Lori
1989 Country Coach Savannah SE
TQ60 is offline   Reply With Quote
Old 04-30-2016, 03:08 AM   #3
Senior Member
YC1's Avatar

Holiday Rambler Owners Club
Join Date: Jun 2011
Posts: 4,574
If you are referring to the post with the large cable It appears to be very sound. Multiple grounds on the proper post work fine.

Retired now but owned a service and sales facility that specialized in public safety installs and repairs. I was a Senior service center manager for Motorola. So just my humble opinion of course based on 40 yrs in the business.
Myron & Deborah
08 HR Endeavor 40 SKQ
2012 Ford Edge Limited FWD 3.5L
Aluminator tow bar, Demco base plate
YC1 is offline   Reply With Quote
Old 04-30-2016, 07:48 AM   #4
Moderator Emeritus
Gary RVRoamer's Avatar

Fleetwood Owners Club
Freightliner Owners Club
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 16,446
While bad grounds can produce some really weird and intermittent problems, I don't think the current practices for grounds are making new problems. In my experience, bad grounds are much less a problem now than they were 25 years ago.
Gary Brinck
2004 American Tradition; 2014 Buick LaCRosse
Homebase in the Ocala Nat'l Forest near Ocala, FL
Gary RVRoamer is online now   Reply With Quote
Old 04-30-2016, 09:49 PM   #5
Senior Member
Join Date: Feb 2010
Posts: 4,282
The grounds are sound now.

There is no metal to metal contact to the body other than the interface of the threads.

The lugs are metal to metal so those are fine.

But they just look like they would be weak points for oxidation over time and ground to body not so good.

The one in the photo is not the worst one, it was just in a photo taken from an electric car to remember which fuse to connect for ign sense.
Tony & Lori
1989 Country Coach Savannah SE
TQ60 is offline   Reply With Quote
Old 05-04-2016, 03:07 PM   #6
Senior Member
Chuck_Hammer's Avatar
Join Date: Jul 2015
Location: Upper Right Ohio.. or?
Posts: 278
All so common these days.... ok .. 20 years or more.

plastic body parts, Glue attachments.. even metal to metal... plastic interior parts.. dashboards... and on and on.

they rely on the threads to Cut into paint overspray... out of warranty in 3 to 5 years... will work till then. if not dealer will deal with it..

latest story I have... Ohio State highway police car pulling over a Akron police car at night.. NO rear lights of any kind.. and the Car was 2 days old.

grounds were never attached in the rear half of the car... 9 black wires not attached at 2 points...

or motorcycles with bad ground connections at the spark plug coils... for 4 years of production. paint in threaded holes

Now retired mechanic...

2012 Ford F 250,"XL" 6.2L Gas, 2 wheel drive. 147,000 miles
2005 Coachmen 29FKCS, Front Kitchen... 2005 Honda VTX1800F
N.E. Ohio in the Spring, Summer, Autumn.
Chuck_Hammer is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Aberdeen Proving Grounds petefl Navigation, Routes & Roads 9 04-01-2009 03:19 AM
Camp Grounds around El Paso, TX MaxRock Camping Locations, Plans & Trip Reports 6 04-22-2008 05:23 AM
Florida, southern Georgia camp grounds chickie Camping Locations, Plans & Trip Reports 8 09-03-2007 04:32 PM
Low voltage in camp grounds Donald Norder sr. MH-General Discussions & Problems 27 08-16-2006 08:13 AM
New Brunswick Camp Grounds brad03ca Canada Region 20 07-18-2006 09:51 AM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:57 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.