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  #13  
Old 08-21-2012, 12:03 PM
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Re: SAND driving - Have you had a problem with your GC?

Did you experience the SERV 4WD problem? - YES[*]What level of GC do you have? - Overland[*]What month and year was your GC built - march 21 2012[*]Which engine? - CRD[*]Which 4WD system - Quadra-drive 2[*]Which Select Terrain setting do you use on sand? SAND 4wd high[*]Which suspension? Quadralift[*]How many times have you taken your GC on sand? - Once[*]On average how long did you stay on the sand? - 1h on sand till in happend. Lucky i was on top of a sand hill and near a road at the time.

Dealer said there aware of this issue and contacted chrysler usa. Said there working on a fix and should be out in a few weeks
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  #14  
Old 08-21-2012, 03:21 PM
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  1. Did you experience the SERV 4WD problem? No
  2. What level of GC do you have? (Laredo, Limited, Overland, etc) Laredo X
  3. What month and year was your GC built? Aug 2010
  4. Which engine? (Hemi, V6, CRD) V6
  5. Which 4WD system? (Quadra-trak 2, Quadra-drive 2) QT2
  6. Which Select Terrain setting do you use on sand? (Sand, Auto, 4WD Low, etc) - (This one may seem silly, but there may be members that dont use sand mode and dont have a problem) Sand the first time and then sand in low every other time
  7. Which suspension? (Quadralift or standard) standard
  8. How many times have you taken your GC on sand? Many
  9. On average how long did you stay on the sand? All day

I've had my Laredo X out on the sand many times. The first time I used sand mode in 4-hi and then after hearing about everyone's problems I started using sand mode in 4-lo. I've never had the 4wd system fail but my ESC light would come on and remain on until I aired the tires back up. I now have a 2012 Limited and I'm heading out to the beach this weekend so I'll report back on how it performs.

Update - Spent all day on the beach today without any problems.
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  #15  
Old 08-24-2012, 08:35 PM
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Re: SAND driving - Have you had a problem with your GC?

There are a couple of different stuck in sand posts so I am posting this on all of them to hopefully help others out.

Wesnesday I returned to the dealership to have the "fix" applied to mine. The repair was a Dynamic ABS Sensor and is located/accessed through the center console. Took about 2 hours to install. I will not be able to get to any sand for several months so I won't know for sure if this "fix" is the real deal or not. I sure hope it is!!!

According to the service writer, this was the repair that Jeep Engineers came up with and this is the first time this particular dealership performed this repair. In theory, I can buy into this as being the root cause. Time will tell I guess.

Can someone else who has had this problem and drives on sand frequently try to get the same repair so we can see if it works?
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  #16  
Old 08-25-2012, 06:29 AM
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Re: SAND driving - Have you had a problem with your GC?

Quote:
Originally Posted by whitneyumr View Post
There are a couple of different stuck in sand posts so I am posting this on all of them to hopefully help others out.

Wesnesday I returned to the dealership to have the "fix" applied to mine. The repair was a Dynamic ABS Sensor and is located/accessed through the center console. Took about 2 hours to install. I will not be able to get to any sand for several months so I won't know for sure if this "fix" is the real deal or not. I sure hope it is!!!

According to the service writer, this was the repair that Jeep Engineers came up with and this is the first time this particular dealership performed this repair. In theory, I can buy into this as being the root cause. Time will tell I guess.

Can someone else who has had this problem and drives on sand frequently try to get the same repair so we can see if it works?
That's encouraging. Did they say whether there's a TSB associated with it?

The sensor in the centre of the vehicle is the stability sensor that detects yaw rates, etc.
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  #17  
Old 09-04-2012, 08:45 PM
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Re: SAND driving - Have you had a problem with your GC?

WK2 w 20" wheels and QTl aired down to 18psi and turned off ESC, drove in 1st/2nd gear ='d tons o fun! Light fluffy stuff and compact had no issues.
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  #18  
Old 09-27-2012, 11:28 PM
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Re: SAND driving - Have you had a problem with your GC?

- Did you experience the SERV 4WD problem? - YES
- What level of GC do you have? - Limited
- What month and year was your GC built - DEC 2011
- Which engine? - 3.6L Petrol
- Which 4WD system - Quadra-drive 2
- Which Select Terrain setting do you use on sand? SAND 4wd high. Believe I may have been in AUTO at the time of failure
- Which suspension? Steel Frame, no air suspension
- How many times have you taken your GC on sand? - 6 times. Failed on teh 7th in HEAVY soft sand conditions. Engine and Electronic Stability Control (ESC) working hard
- On average how long did you stay on the sand? - Over on Moreton for days. Failure about an hour into heavy conditions.

Interesting note is that the ESC Malfunction light (yellow car skidding) came on above the ESC OFF image. This leads me to believe the ESC is jumping back and forth along with the Auto shifting of the 4WD light.

SERV4WD came on same time as ESC Malfunction. After towing some time, the SERV4WD went off (Power to front wheels returned), but ESC Malfunction stayed on for some time.
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Old 10-06-2012, 08:51 AM
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Re: SAND driving - Have you had a problem with your GC?

Did you experience the SERV 4WD problem? - NO (thank god)
- What level of GC do you have? - Limited, 70th Anniversary
- Which engine? - 3.6L Petrol
- Which 4WD system - Quadra-Trac 2
- Which Select Terrain setting do you use on sand? Sand Low
- Which suspension? Steel
- How many times have you taken your GC on sand? - 5-6
- On average how long did you stay on the sand? - On Straddie for a week which totalled about 2 hours of sand driving

Very happy with how the Jeep went in the sand. I was really worried about the problem occurring but it didn't!
Stayed in low the whole time as i've heard that it doesnt stop the problem but keeps it in 4WD.
Went with 3 other groups (Pajero, 200 series, Cruiser Ute) and they all got stuck in the VERY soft sand, whereas the Jeep didn't!
Granted, they were towing vans and we weren't... still happy though. Jeep handled it with ease at 22 psi
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  #20  
Old 12-06-2012, 02:05 AM
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Re: SAND driving - Have you had a problem with your GC?

Here I sit at Fraser Is where I've been comimg for the last 40 years to scarred to drive anywhere, so far the 4WD serv has failed twice today both time on relatively easy parts of the track I am really Pi&^ed off. The first time I came up here in August it did the same thing, so I took it to the dealer for a software upgrade and they said no problems mow it won't happen again, I hit the beach two days ago and within 10 minites it had failed, and today twice today and had to flog the vehicle to get it to the beach to take it up to the 60k to reset the system. 2012 GC Laredo, with air suspension. Thanks Bob Here.
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  #21  
Old 12-06-2012, 04:12 AM
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Re: SAND driving - Have you had a problem with your GC?

Quote:
so far the 4WD serv has failed twice today
Ouch.

Thats a worry.

Have you contacted Jeep assist?
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  #22  
Old 12-06-2012, 08:07 AM
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Re: SAND driving - Have you had a problem with your GC?

First time I took mine back to the dealer they said it was all sorted but they never gave me the "fix". Then I contacted Chrysler HQ in Melbourne and another 2 visits to the dealer later I had the elusive fix applied. Granted it really sucks to have to go to these lengths to get the patch applied, but definitely take your story immediately to Chrysler HQ and get the real fix. If I had trusted my dealer I would have thought I had the fix until I ended up in trouble like you.
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  #23  
Old 12-06-2012, 08:11 AM
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Re: SAND driving - Have you had a problem with your GC?

Bob: you may not get this due to the limited coverage on fraser, but chuck it in low range when you don't have the error, and then even if you do get it 4WD will still work normally as it is manually and physically locked.
Hope this helps
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  #24  
Old 12-06-2012, 02:21 PM
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Re: SAND driving - Have you had a problem with your GC?

  1. Did you experience the SERV 4WD problem? No
  2. What level of GC do you have? (Laredo, Limited, Overland, etc) Laredo
  3. What month and year was your GC built? not sure (2012 model bought in March)
  4. Which engine? (Hemi, V6, CRD) V6
  5. Which 4WD system? (Quadra-trak 2, Quadra-drive 2) QT2
  6. Which Select Terrain setting do you use on sand? (Sand, Auto, 4WD Low, etc) - (This one may seem silly, but there may be members that dont use sand mode and dont have a problem) Sand / Low Range
  7. Which suspension? (Quadralift or standard) Standard
  8. How many times have you taken your GC on sand? 20 or so trips over a 10-12 day period spread out this summer.
  9. On average how long did you stay on the sand? Usually hit fort fisher early in the morning when it opens. Travel 4 miles to my fishing spot right at the end of the 4WD access. Traveling over hard packed sand, heavly rutted soft sand, and some wet sand. Fish til lunch then travel back the 4 miles to civilization and eat lunch. Then go back the 4 miles to my fishin spot and watch sunset then back the 4 miles. Same schedule Fri, Sat, Sun. About 2 weekends a month over the summer. All Beach driving on sand I used Sand and Low range with tire PSI at 15-20 PSI. (One time I wanted to see if I really needed to air down. Big mistake got stuck in the "turn" where 90% of people get stuck before you get on to the water's edge.) No problems with 4x4 system this summer.
My thought is that the transfer case may be overheating trying to constantly change torque ratios between the front and rear axle causing the Service 4x4 error. When in Low range the front and rear axle's torque value are locked.
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