**Update** After driving an additional 900+ miles I finally got home and took my truck to the RAM dealer. Quote from tech "Inspection found C147B, performed diagnostic, confirmed Front Axel Disconnect (FAD) hanging up. Removed and replaced Front Axel Disconnect." Hope this helps if anyone is having these issues.
I really appreciate you posting this. I just had to switch into four-wheel drive for the first time since owning my 2017 Ram 3500 dually after picking up my 4500 lb slide in camper that's sitting in the back. I'm in the mountains of North Carolina when this happens and I did smell something strange coming from up in the engine compartment when that light came on after driving it down the mountain another 5 mi or so to a safe stopping point. The smell seems to have gone away but it does not appear to want to engage four-wheel drive lock or four-wheel drive low no matter what buttons I push or which selector position on the dial I choose. I'm definitely going to stop messing around with it because I've got another 1300 mi to go back to Houston. Driving right now as I type with a 4WD SERV yellow lamp indicator. Obviously your advice is just a tip but I was going to keep driving anyway so I'm glad to see that you posted your experience from talking with them.
I have since made two additional videos on this issue, the final video show you the part and how to do the fix. Check my channel. Good luck and keep driving, the second time I had this I was 3,500 miles from home and I just kept driving.
Had a similar issue. Originally surfaced while towing a 5th wheel on the I-75 Macon GA by-pass. Based on net search I checked my fuses and found all of them not fully seated. Pushed them in about 1/4 inch. That cleared the issue. Drove another 1200 miles and the same condition occurred after driving the I-75 by-pass in Macon. Stopped at a rest area and found the same condition. After pushing them back in...no more issues (probably until I tow back through Macon). Don’t know if there’s a resonance in the road surface or what...but will continue to monitor for recurrence and update if it happens without driving on that particular segment of road.
Update. Replaced mine with a part from Amazon and it failed in 400 miles. It was full of water inside the electronics control board portion of it. This made me pull apart the original OEM won that failed at $98,000 mi and it two had water penetration because the control board was corroded in the corner where there was nothing to cause corrosion other than water intrusion. Tonight I received a free replacement part from the same Amazon vendor, used painters tape to seal off the electrical connector portion, used a plastic bag and painters tape to seal off the portion that mates to the axle and liberally sprayed three separate coatings of Rust-Oleum rubberizing flexible waterproofing aerosol sealant made for roofs, non-pressurized water fittings and basically anything else you need waterproofed that does not have pressure inside of it. I guarantee this stops these failures
Mine turned on and off today. While googling I watched this and figured out my problem. Service 4wd turned on then off while in the carwash with undercarriage spray. Must have gotten the actuator plug wet since I haven't seen it since.
I just had the air conditioning fixed at a local repair shop and when I picked it up the serv 4WD was on , they had dash out on my 2011 Ram I hope they forgot to hook up a wire ? What do you think ?
Well, my 2016 Ram 1500 Big Horn did leave me on the side of the road. I got where I was going and when I came back out the truck would not start and the 4 WD light was RED! There was a fluid on the asphalt that may have bee from the truck, but here I am, with the Quirk Dealership in Quincy, Massachusetts telling me that they are our 10 days for service APPOINTMENTS. Sounds pretty scummy to me! I'll try to get the actuator replaced or at least serviced from a regular mechanic, but I'm starting to lose confidence in Ram!
Me too brother .I have 2012 Dodge Ram 1500 Laramie with 98000 miles and I just have the 4 wheel drive serviced by the dealer about two months ago who charge me close to $800 and now i`m seeing the service 4 wheel drive light, I`m getting fed up with Ram too.
Great video, thanks for it. I have a 2011 3500 6.7 Cummins, same light recently. I thought it might be a service reminder to change differential and transfer case fluids. Will go get my codes checked, or maybe buy the OBD reader you like. And the dealership? What a joke. Thanks for info, and continuing safe travels!
I have 2011 3500 Mega Cab. I thought maybe a TC fluid issue . What did you learn? I'm on my way to a northern AZ elk hunt a d don't want to have problems. Seems to shift in and out just fine.
Maybe I missed it but I thought you were going to say something about your blue driver. I have been looking for an OBD reader but most adds dont specifically say diesel. Thanks
I’ve got a 2015 Ram 3500 that’s been having the service 4wd system message pop up intermittently on the screen. I’ll have to use my code reader and see what codes are popping up with the message. It’s really discouraging to hear of yet another Dodge dealership that’s pretty much worthless and has terrible ratings. You’d think Chrysler/Dodge would hold dealerships like this accountable, instead us customers have to tolerate them.
@@LandingZoneHome so the light been of for a while, so Like you said if I don’t mess with it I can drive back home and take it to the dealer and let them fix it. What do you think
Have had the same issue... only when I pull my camper long distances. Axle disconnect has been changed 3 times, and I am about to take it in for the 4th time with only 50k miles on truck. So hope your repair lasts longer than mine. I am curious if you have been able to pull camper on long trips before with no issue?
Many thousands of miles including cross-country towing large 5th wheel. After the fix I'm still towing with no problems. Keeping my fingers cross, however I'm towing a much smaller Airstream now. Thanks for watching.
If you have a leveling kit on that will make your CV shaft go faster. It changes the angel on it . But when my 4 wheel lite comes on it was the speed sensor ( anti-lock brakes ) so if you have a bad wheel bearing it will take out your CV shaft also. So if you keep going throw CV shaft check your wheel bearing too. Hope this helps .
Love your videos but there isn’t anyway I’d trust a Dodge/Chrysler/Fiat/Jeep product. I pull my Airstream with a 2021 Toyota Sequoia Platinum 4WD……. Too many trusted mechanics I know and former owners have told me horror stories of these typically defect ridden products. Resale tells the tale too. So sorry for your headaches. Trade it for a Tundra would be my next move.
@@LandingZoneHome true, it’s the definition of “sooner” that matters. Hopefully that 38k mile incident was your only one…. It’s very good you have the Cummins…. The newer ones with the Italian Fiat diesel spend more time in the shop than on the road.
Sorry to say, Toyota Tundra will be hazardous pulling a 15k ton boat on a trailer. Only a Dodge 3500 can do that. Tundra can try and pull but good luck stopping. LOL
It took me a couple weeks, but I think I figured it out. It seems to be working with my fix but don't hold me to it. I am not a certified Ram mechanic. I removed the 4 wheel drive actuator and very gently took the snap cover off. I cleaned out all the old sealant. I used WD40 (water displacing) and denatured alcohol cleaning everything in sight. I re-greased the gears and axle shafts, put everything back together again following up with a little dialectic grease where the electric connector plugs in. I'm considering putting some shrink wrap tubing around that connector. My Ram parts guy said that there is a "water issue" in this unit. My price at the dealer was $640 after my discount. But after listening to him, I decided to take it apart myself and it seems to have worked. Make sure you reseal it up properly (and minimally) before you put the cover back on, and of course top off the differential fluid. Hope this helps someone.
Great video! This is what youtube is supposed to be like!
Thanks for the compliment.
**Update** After driving an additional 900+ miles I finally got home and took my truck to the RAM dealer. Quote from tech "Inspection found C147B, performed diagnostic, confirmed Front Axel Disconnect (FAD) hanging up. Removed and replaced Front Axel Disconnect." Hope this helps if anyone is having these issues.
Forgive my question but do you mean the axle or plug? If you would explain it to me thanks
How many miles were on the truck when it went out sir?
@@cristobalreyes8051 Just under 40k if I remember correctly.
Did the abs light also came on?
@@rt86000 No, never got the ABS light.
I really appreciate you posting this. I just had to switch into four-wheel drive for the first time since owning my 2017 Ram 3500 dually after picking up my 4500 lb slide in camper that's sitting in the back. I'm in the mountains of North Carolina when this happens and I did smell something strange coming from up in the engine compartment when that light came on after driving it down the mountain another 5 mi or so to a safe stopping point. The smell seems to have gone away but it does not appear to want to engage four-wheel drive lock or four-wheel drive low no matter what buttons I push or which selector position on the dial I choose. I'm definitely going to stop messing around with it because I've got another 1300 mi to go back to Houston. Driving right now as I type with a 4WD SERV yellow lamp indicator. Obviously your advice is just a tip but I was going to keep driving anyway so I'm glad to see that you posted your experience from talking with them.
I have since made two additional videos on this issue, the final video show you the part and how to do the fix. Check my channel. Good luck and keep driving, the second time I had this I was 3,500 miles from home and I just kept driving.
Had a similar issue. Originally surfaced while towing a 5th wheel on the I-75 Macon GA by-pass. Based on net search I checked my fuses and found all of them not fully seated. Pushed them in about 1/4 inch. That cleared the issue. Drove another 1200 miles and the same condition occurred after driving the I-75 by-pass in Macon. Stopped at a rest area and found the same condition. After pushing them back in...no more issues (probably until I tow back through Macon). Don’t know if there’s a resonance in the road surface or what...but will continue to monitor for recurrence and update if it happens without driving on that particular segment of road.
Pretty strange. Thanks for watching.
Update. Replaced mine with a part from Amazon and it failed in 400 miles. It was full of water inside the electronics control board portion of it. This made me pull apart the original OEM won that failed at $98,000 mi and it two had water penetration because the control board was corroded in the corner where there was nothing to cause corrosion other than water intrusion. Tonight I received a free replacement part from the same Amazon vendor, used painters tape to seal off the electrical connector portion, used a plastic bag and painters tape to seal off the portion that mates to the axle and liberally sprayed three separate coatings of Rust-Oleum rubberizing flexible waterproofing aerosol sealant made for roofs, non-pressurized water fittings and basically anything else you need waterproofed that does not have pressure inside of it. I guarantee this stops these failures
Great tips on water proofing. If I ever have to replace mine again I'll keep this in mind.
Superb video 👌🏽👌🏽💪🏼
Thank you so much 😀
I live near Crystal River & there are 2 Ram dealers I use nearby. Plaza Ram in Inverness & Phillips Ram in Ocala.
I think it was on the weekend when I was at Crystal River so I drove on South. Thanks for watching.
Mine turned on and off today. While googling I watched this and figured out my problem. Service 4wd turned on then off while in the carwash with undercarriage spray. Must have gotten the actuator plug wet since I haven't seen it since.
Good luck and thanks for watching.
Mine came on today during a very heavy rainfall. It went off a few miles later when the road was less wet. Where is that actuator plug pls?
Great video and info. Hate those intermittent issues like that.
Thanks Marion, these issues can really add stress. And your videos have been very helpful.
I just had the air conditioning fixed at a local repair shop and when I picked it up the serv 4WD was on , they had dash out on my 2011 Ram I hope they forgot to hook up a wire ? What do you think ?
Sorry but I have no idea. I would start by clearing the code to just see if it goes away. Good luck.
@@LandingZoneHome , thank you Replying back
Well, my 2016 Ram 1500 Big Horn did leave me on the side of the road. I got where I was going and when I came back out the truck would not start and the 4 WD light was RED! There was a fluid on the asphalt that may have bee from the truck, but here I am, with the Quirk Dealership in Quincy, Massachusetts telling me that they are our 10 days for service APPOINTMENTS. Sounds pretty scummy to me! I'll try to get the actuator replaced or at least serviced from a regular mechanic, but I'm starting to lose confidence in Ram!
Good luck with the repair.
Me too brother .I have 2012 Dodge Ram 1500 Laramie with 98000 miles and I just have the 4 wheel drive serviced by the dealer about two months ago who charge me close to $800 and now i`m seeing the service 4 wheel drive light, I`m getting fed up with Ram too.
Great video, thanks for it. I have a 2011 3500 6.7 Cummins, same light recently. I thought it might be a service reminder to change differential and transfer case fluids. Will go get my codes checked, or maybe buy the OBD reader you like. And the dealership? What a joke. Thanks for info, and continuing safe travels!
Thank you for the comment. Safe travels to you and thanks for watching.
I have 2011 3500 Mega Cab. I thought maybe a TC fluid issue . What did you learn? I'm on my way to a northern AZ elk hunt a d don't want to have problems. Seems to shift in and out just fine.
Mine actually will go into 4 wheel drive high on it's own, too.
Maybe changing the acuator will fix that.
Maybe I missed it but I thought you were going to say something about your blue driver. I have been looking for an OBD reader but most adds dont specifically say diesel. Thanks
I do have a video on the Blue Driver, here is the link: ua-cam.com/video/L2CjKqjvO3o/v-deo.html
Watt do you fix in you pick up I have one 2014 dodge Ram 3500 hundred single wheel and I have the light 4WD serv yellow letter watt do you fixed
It was the servo, I did a posting on this you can read at the beginning of these comments. Thank you for watching.
There is a top notch Ram tech at Key West
Great tip, thanks for watching.
Great info. Thanks
Thanks for watching Mark.
Just had this happen on a 18 3500 , batteries were weak. Replaced batteries problem solved.
That is interesting. Thanks for watching.
You saved my life!! thank you!!!!
Thank you! And please share my videos and subscribe.
I’ve got a 2015 Ram 3500 that’s been having the service 4wd system message pop up intermittently on the screen. I’ll have to use my code reader and see what codes are popping up with the message.
It’s really discouraging to hear of yet another Dodge dealership that’s pretty much worthless and has terrible ratings. You’d think Chrysler/Dodge would hold dealerships like this accountable, instead us customers have to tolerate them.
Agree completely. Good luck with your issue and thanks for watching.
My 2014 dodge ram 1500 wont start. I have a 4WD SERV message along with message in regards to my breaks.
Why won’t my truck start?
The $WD SVC issue will not stop it from starting so you have a different issues causing that. Do you have a code reader?
Thanks, what happened when you service, my still under warranty, only 7500 some miles.
Please check the comments below for details on the service. Thanks for watching.
@@LandingZoneHome so the light been of for a while, so Like you said if I don’t mess with it I can drive back home and take it to the dealer and let them fix it. What do you think
@@elmaracayero5833 Yep, don't touch it and just keep driving until you can get a service appointment.
My 14 1500 has done this but is stuck is 4wd could it be the same?
Yes it could be the same.
so is mine..just happened yesterday
Bless thank you
Thank you for watching.
Was it windy when it came on? Mine came on when it was -35 below. But you are in Florida. So idk..
No, it was warm and calm, don't think weather played any part of my failure. Thanks for watching.
Have had the same issue... only when I pull my camper long distances. Axle disconnect has been changed 3 times, and I am about to take it in for the 4th time with only 50k miles on truck. So hope your repair lasts longer than mine. I am curious if you have been able to pull camper on long trips before with no issue?
Many thousands of miles including cross-country towing large 5th wheel. After the fix I'm still towing with no problems. Keeping my fingers cross, however I'm towing a much smaller Airstream now. Thanks for watching.
If you have a leveling kit on that will make your CV shaft go faster. It changes the angel on it . But when my 4 wheel lite comes on it was the speed sensor ( anti-lock brakes ) so if you have a bad wheel bearing it will take out your CV shaft also. So if you keep going throw CV shaft check your wheel bearing too. Hope this helps .
@@scottmoorman2252 Front or back speed sensor?
Time for a Toyota
@@ozarkliving7263 cant pull a 5th wheel with a Toyota
Good info, thank you. Informative.
Very glad you liked the video and thanks for watching.
Love your videos but there isn’t anyway I’d trust a Dodge/Chrysler/Fiat/Jeep product. I pull my Airstream with a 2021 Toyota Sequoia Platinum 4WD……. Too many trusted mechanics I know and former owners have told me horror stories of these typically defect ridden products. Resale tells the tale too. So sorry for your headaches. Trade it for a Tundra would be my next move.
Sooner or later they all have issues. Thanks for watching.
@@LandingZoneHome true, it’s the definition of “sooner” that matters. Hopefully that 38k mile incident was your only one…. It’s very good you have the Cummins…. The newer ones with the Italian Fiat diesel spend more time in the shop than on the road.
Sorry to say, Toyota Tundra will be hazardous pulling a 15k ton boat on a trailer. Only a Dodge 3500 can do that. Tundra can try and pull but good luck stopping. LOL
Don't bring your truck to Utah I got mine went on and I took it to the dealer and they took 7 months in the steel then fix it right
Wow is all I can say to this. Just wow.
You talk to much just get to the damn point
Will work on that, thanks for watching.
Everything you said was relevant to us. Thx for taking the time to post.
Angela Girdley Thank you Angela, glad it helped.
If you don’t want to listen just click out of video. Video was helpful to me
No diagnostic/repair value to this video. Thanks anyway.
Thanks for watching.
It took me a couple weeks, but I think I figured it out. It seems to be working with my fix but don't hold me to it. I am not a certified Ram mechanic. I removed the 4 wheel drive actuator and very gently took the snap cover off. I cleaned out all the old sealant. I used WD40 (water displacing) and denatured alcohol cleaning everything in sight. I re-greased the gears and axle shafts, put everything back together again following up with a little dialectic grease where the electric connector plugs in. I'm considering putting some shrink wrap tubing around that connector. My Ram parts guy said that there is a "water issue" in this unit. My price at the dealer was $640 after my discount. But after listening to him, I decided to take it apart myself and it seems to have worked. Make sure you reseal it up properly (and minimally) before you put the cover back on, and of course top off the differential fluid.
Hope this helps someone.
And just subscribed!
Thank you Todd, appreciate your support.
I just needed information on why the light keeps coming on and not all this blathering on this video sucks
Good luck with your problem.
@@WesternReaper84 You can watch PRT 2 on it happened again or Part 3 on what part to replace that fixes the issue.