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Unread 03-19-2012, 08:40 AM   #1
jgiuliani
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4WD malfunction on the beach (SERV 4WD)

First time on the beach and this happens, not a happy Jeep owner at the moment. I searched through the threads here and on Jeep Garage and found a few people that had the same problem I had this weekend, but they were all with 2011's. I have a 2012 so any of the software upgrades should have been applied. Anyone with a 2012 experience the SERV 4WD error while driving in sand?

It's going in to the dealer on Friday but I'm not expecting much out of them.

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Unread 03-19-2012, 09:00 AM   #2
MiguelT678
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Was this in the Outer Banks? Plan on doing this in July.
Sorry for your trouble. Please post anything they come back with.
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Unread 03-19-2012, 09:38 AM   #3
jgiuliani
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This was at Fort Fisher State Rec area. Luckily the Rangers have the towing service on speed dial and for $135 (all the cash I had in my wallet) it seemed like a pretty good deal to get my Jeep and family off the beach. The tow operator says he pulls out a good number of late model Cherokees. Mostly user error but also a good number of mechanical failures. It's going in to the dealer on Friday, I'll let you know what they have to say.
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Unread 03-19-2012, 09:43 AM   #4
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Unread 03-19-2012, 10:44 AM   #5
JABEACHFANZ
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I've been there numerous times. However, I havn't been since I got my wk2. What specs are your jeep? Can you give us a scenario or timeline of events? What 4wd system do you have and what settings were you driving with?
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Unread 03-19-2012, 11:05 AM   #6
kentman
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My Service 4WD message on the XK was the front differential solenoid. I swapped it out myself for $23. Not a big issue for me.

Fort Fisher is tough driving. Easy to get stuck and / or break something. Had good luck myself, but it gets dicey at times. My coworker killed his transmission on his '09 JK Rubicon out there. I went on a rescue run with him in my WJ, but there was no saving it.
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Unread 03-19-2012, 11:16 AM   #7
txwest
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No trouble on her first trip. '12 overland HEMI towing QL.



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forumrunner_20120319_121434.jpg  
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Unread 03-19-2012, 11:50 AM   #8
jgiuliani
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Quote:
Originally Posted by JABEACHFANZ View Post
I've been there numerous times. However, I havn't been since I got my wk2. What specs are your jeep? Can you give us a scenario or timeline of events? What 4wd system do you have and what settings were you driving with?
Laredo X with ORA I. Lowered air pressure to about 20lbs and cruised out long access road with the Selec-Terrain on Auto until I got to the beach. Once on the beach the sand get a bit softer so switched over to the sand setting. Continued down about a mile or so and was just telling my wife how well it was doing considering the touring tires on it. Was just in a set of tracks cruising about 15 mph when I could feel it start to bog down and noticed the SERV 4WD light come on. From then on it was dug in as you can see in the picture, front tires stopped pulling. Tried cycling the ignition, tried switching into other 4WD high modes and also low, but it wouldn't let me do anything. Just had to sit and wait for the "The Beast" to show up, a Ford F350 super duty that had no trouble dragging my dead Jeep. Once I got back to firm ground the service light went out and hasn't come on since. It's going to pretty hard to trust this vehicle in that situation again (which is why I bought it in the first place). I'm supposed to heading to Assateague Island next month to fish with my brother. I have a feeling we'll be driving his Nissan down the beach, not my Jeep.

I've been out to Fort Fisher many times before in my '98 Wrangler and even a 2002 Ford Escape with no trouble. It's not that bad if you know what you're doing. Hell, some dude in a Suzuki cruised passed while I was waiting for the tow.
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Unread 03-19-2012, 01:02 PM   #9
JABEACHFANZ
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That is odd. Was this the first time you used any of the settings other than normal? I'm anxious to know what the outcome is. Also, have you tried any of the select terrain settings since the tow?

Fort Fisher is not your typical beach driving if I might say so myself, the sand gets very deep and loose in some parts, and the transition across the high water mark can get you stuck on the frame if you don't have enough momentum to get up before digging in.

Last year I saw a chevy 2500 get out to far in the surf (while the tide was coming in) and was sitting on his frame. Even my 4x4 Trailblazer and another fisherman's tahoe couldn't pull him out before the tow got there. Needless to say once the tow pulled him out, he spent the following 8 - 10 hours in a portable garage tent doing something to the drivetrain.
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Unread 03-19-2012, 01:15 PM   #10
jgiuliani
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Yeah I tried using the Selec-Terrain setting a little bit yesterday just to see if it would let me and it did with no problems. I couldn't actually use them though because I didn't have anywhere to take it off-road. A search of the forum reveals other that have the same issue and some have been cleared up with software upgrades or replaced solenoids, others seem to have gone unresolved or haven't been tested again after the intial problem. But those all seem to be 2011's. I just have a feeling under normal driving conditions everything will be fine but when I really need the system to work it's going to fail. At least I'm cautious enough to always stay above the high tide line, seen too many people stuck in the muck. I'll update everyone after the dealer has a look on Friday, I'm really curious to see if it stored any codes and what they are.
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Unread 03-19-2012, 01:24 PM   #11
Jackal01
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The only time mine came on was when an offroad shop (see signature) broke a rear ABS sensor and the traction control lights, ABS and serv 4x4 lights all on. It was replaced and that fixed it. Some more details here http://www.jeepforum.com/forum/f309/...o-4x4-1332758/
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Unread 03-19-2012, 01:30 PM   #12
superserialMBP
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At least I can say the Snow setting works great. Made my all-season Michelins feel like all-terrains in the last couple 8"+ snow storms we've had. I haven't tried out Sand/Mud though yet.
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Unread 03-19-2012, 01:37 PM   #13
WvTaco
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what 4x4 system do you have?
qt2 or ql?

oh i see u mention adventure 1 or qt2 with out the air suspension. i have never heard of one doiing that usually the ql people.
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Unread 03-19-2012, 02:30 PM   #14
BMRisko
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Quote:
Originally Posted by txwest View Post
No trouble on her first trip. '12 overland HEMI towing QL.



Attachment 366501
...and this is why our beaches get closed to motor vehicles.
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Unread 03-19-2012, 03:03 PM   #15
Jackal01
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Quote:
Originally Posted by BMRisko View Post
...and this is why our beaches get closed to motor vehicles.
+1
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