Jump to content

4x4 problems

SleSierra14
 Share

Recommended Posts

SleSierra14 New Member

SleSierra14

Posted
Posted

Hello so I have a 14 Sierra 1500 sle 4x4

i was towing my 16ft flatbed trailer and using the 4hi mode and I back the trailer up and turned it off with the 4 on. I turn it in and the service 4wd shows up. I said huh weird and pulled the truck out.  I tried to turn it back to 2wd and it won’t change. The light doesn’t turn on for 2 hi, auto or 4low. I know that it’s in 4hi bc when I turn it hops. Had to drive with the 16ft for about 30mins on 4hi   

24617432-5911-4829-806A-03453EF0FCD8.png

35E6CF41-41AB-4A4B-807E-8CFAD40FED11.jpeg

bdbake01 Senior Enthusiast

bdbake01

Posted
Posted

I just had to replace the transfer case force motor and position sensor in my '14.  Very similar behavior.  I was in 4auto moving a trailer.  Parked it, forgot to turn on auto.  Got in the next morning, turn it to 2wd, nothing changes.  Auto light blinked, went out, and then no 4wd position lights.  "Service 4wd" light came on, and it was stuck in 4wd.  You don't wanna know the price.  

 

SleSierra14 New Member

SleSierra14

Posted
  • Author
Posted
30 minutes ago, bdbake01 said:

I just had to replace the transfer case force motor and position sensor in my '14.  Very similar behavior.  I was in 4auto moving a trailer.  Parked it, forgot to turn on auto.  Got in the next morning, turn it to 2wd, nothing changes.  Auto light blinked, went out, and then no 4wd position lights.  "Service 4wd" light came on, and it was stuck in 4wd.  You don't wanna know the price.  

 

Yikes sounds bad then. I’m going to see if maybe changing the transfer case oil and or the switch might help. I gotta know how you paid friend 

bdbake01 Senior Enthusiast

bdbake01

Posted
Posted
4 minutes ago, SleSierra14 said:

Yikes sounds bad then. I’m going to see if maybe changing the transfer case oil and or the switch might help. I gotta know how you paid friend 

$1,411 at the dealership.  Not happy about it.  Good luck.  FYI, apparently there's some specialized tool for removing/reinstalling the force motor.  Normally I do these kinda jobs myself, but I didn't have the tool or the time in this case.  

SleSierra14 New Member

SleSierra14

Posted
  • Author
Posted
4 minutes ago, bdbake01 said:

$1,411 at the dealership.  Not happy about it.  Good luck.  FYI, apparently there's some specialized tool for removing/reinstalling the force motor.  Normally I do these kinda jobs myself, but I didn't have the tool or the time in this case.  

Mmm is the dealership the only place that could fix it? Apart from oneself , the good thing is that I have another truck (06 ram)in the meantime if I fix it myself.  

CrawlSlow Enthusiast

CrawlSlow

Posted
Posted
On 5/10/2019 at 9:38 AM, Mr.GGMMCC said:

2014 GMC was stuck in 4WD (High) with message "Service 4WD"    As with several other comments....not 100% what caused it but....transfer case was stuck in 4WD (high) and the light on the selector dial would only come on when the selector dial was on "AUTO".    But it was not in "Auto" it was in 4WD (High).   To test if it was the electrical or mechanical, with the truck off,  I first removed the fuse #6 (FWD) in fuse panel in the engine comp (without DC power it shifts to 2wd)   I did a short test drive to see if the 4WD had disengaged and it had.   When I put the fuse back in, it reengaged the FWD and the actuator was still stuck, turning the dial on the dash still did nothing. 

To resolve or get it to reset.  I left the truck engine running and again removed the fuse.  With the engine still running, I turned the dial to 4WD (hi) and put the fuse back in.  This time is cycled and the light on the dial was now on when it was in 4WD hi,  to match what the transfer case was positioned in.   

Now when I rotated the dial it shifted to Auto, 2WD, etc. with the light blinking during shift just like it is supposed to.   It has been working fine since then.  I sort of viewed it as forcing it to reboot.    I may have been able to get this same result with the ignition switch simply turned (without the engine running), but that isn't how I did it.         

 

 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Grumpy Bear
      PF63 Oil Filters Going Away?

      By Grumpy Bear · Posted

      The guy that owns K&P filters last I checked in with him has over 300,000 miles on his Dodge base Hemi using his own 35 micron absolute stainless mesh filter from its first oil change.    The GM study I've posted a dozen times shows the relationship in engine life based in multiples of base units, not miles or years. That is the base unit is the number of miles the motor ran using the reference filter efficiency.    The above two paragraphs dismantle anecdotal arguments IF one changes oil often enough to prevent particle formation and the motor is in otherwise good shape. That is not full of silica (no air filter) or suffering a metallurgical issue that is not part of the lubrication discussion. Poor heat treat in example.   Data from UOA's I've reviewed from more than a few engines can show remarkably broad variations in oil cleanliness using the exact same filter over the course of an engines life.     Lastly there is the common sense of it. Wear debris WILL circulate the engine BEFORE it ever sees a filter in route to that filter and WILL harm the pump which NEVER sees filtered oil.    Alpha question then becomes, given the facts, how long do you believe is a reasonable service life from a vehicle you are certain you will not pass down? That is the junk yard will be it's resting place when you're done with it? (the moral issue most don't care about).    Omega question is then how diligent are you prepared to be in general mechanical, air & oil maintenance? Preventing particulates and keeping them sufficiently dilute; preventing the precursors from generation, amalgamation and precipitation.    If I get a good look at the engine bay of a vehicle I have a fair idea of the owners commitment to the inside of the power train. That 30 micron WIX is still more efficient than a sieve.                 
    • Tyler Gibbs
      PF63 Oil Filters Going Away?

      By Tyler Gibbs · Posted

      It also depends on what criteria someone is using for “best” when talking filters.  Are we going off best efficiency?   Best quality/QC?  Etc. because the two may not mutually exclusive.  
    • Tyler Gibbs
      PF63 Oil Filters Going Away?

      By Tyler Gibbs · Posted

      They’re not the same wiz as 10-15 years ago.  QC has fallen pretty hard.  The XP line was never good though in the first place.    https://bobistheoilguy.com/forums/threads/wix-filter-rusted-through.386492/post-6991372   https://bobistheoilguy.com/forums/threads/i-ve-used-my-last-wix-filter.27299/   https://bobistheoilguy.com/forums/threads/looking-for-a-better-replacement-for-wix-51258.403977/   https://bobistheoilguy.com/forums/threads/convince-me-in-using-the-purolator-boss.401537/post-7420147   the forums are littered with posts and examples of not great wix filters the last couple years 
    • Atlas
      Joke Thread

      By Atlas · Posted

      *Your      
    • CamGTP
      PF63 Oil Filters Going Away?

      By CamGTP · Posted

      I'd guess that it's because they are Mann-Hummel filters since about 2016, they own Wix and are mostly all made in China now. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...