4x4 light intermittently doesnít illuminate - Ford F150 Forum - Community of Ford Truck Fans

Go Back  Ford F150 Forum - Community of Ford Truck Fans > Ford F150 Forums > Maintenance Shop
4x4 light intermittently doesnít illuminate >

4x4 light intermittently doesnít illuminate

Topic Sponsor
Maintenance Shop Keep your Ford F150 truck running strong. Discuss all things maintenance here.
Sponsored by:
Sponsored by:

4x4 light intermittently doesnít illuminate

 
Old 02-08-2019, 02:06 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Feb 2019
Posts: 11
Thanks: 0
Thanked 2 Times in 2 Posts
Default 4x4 light intermittently doesnít illuminate

Hello,

Last week I purchased my 2014 F-150 STX used from a dealer. Itís a beautiful truck and only has 21k miles, but in the past few days I have discovered one issue with the 4WD. Occasionally (maybe 10-20% of the time that I drive the truck) switching the 4WD **** to 4HI (and/or back to 2WD) doesnít illuminate anything itís supposed to on the dash panel. No ď4x4 shift in progressĒ, no ď4x2Ē or ď4x4 HighĒ, etc. Once when I noticed it I pulled into a parking lot, turned off the truck, then turned it back on and everything lit up like itís supposed to. Thankfully, I havenít yet heard any grinding noises that seem to accompany similar issues people have had.

Doing some research, it sounds like replacing the IWE Solenoid may be a good place to start? Would a faulty one cause an intermittent issue like this without the grinding noise?

Thanks in advance.

Last edited by Alaskanmatt; 02-08-2019 at 02:11 PM.
Alaskanmatt is offline  
Old 02-08-2019, 05:00 PM
  #2  
Mark
iTrader: (1)
 
techrep's Avatar
 
Join Date: Jan 2009
Location: Va. Beach, VA.
Posts: 33,650
Thanked 1,752 Times in 1,580 Posts
Default

it could but, usually no light means the transfer case shift motor is not working.. once it moves properly.. you get your light. with only 21K miles on it .. i would think it’s still under warranty... oops, just noticed it’s a 14.. warranty up.
techrep is offline  
Old 02-08-2019, 05:36 PM
  #3  
Sociopath Truckdriver
 
johnday's Avatar
 
Join Date: Jun 2014
Location: Barton City Michigan
Posts: 11,920
Thanked 2,387 Times in 1,963 Posts
Default

From wiring diagrams I've seen, there is no feedback from the solenoid on the firewall, [4X4 solenoid] to anything. It gets a signal from the TCCM to either energize, disengage IWEs, or deenergize, engage IWEs. Like techrep said, I'd suspect something with the shift motor, possibly a limit sensor or something.
A truck that age, with that few miles on it, may not have had been engaged very often, maybe it just needs a little exercising.
Sounds like a nice low mileage truck.
johnday is online now  
Old 02-08-2019, 06:01 PM
  #4  
Junior Member
Thread Starter
 
Join Date: Feb 2019
Posts: 11
Thanks: 0
Thanked 2 Times in 2 Posts
Default

Thanks for the responses, sounds like I may have been going down a rabbit hole with the IWE solenoid thought.

Would it be worth trying the ďhammer-tapĒ Iíve read about to see if it loosens it up, or should I just continue to drive it and do some switching back and forth between 2WD and 4HI? The dealer said (supposedly, you never know with their stories) that the truck was an employeeís dad who is an airline pilot. If true, he probably mostly drove it around the city and it probably sat in airport parking a lot. Maybe the 4WD just hasnít been used much.
Alaskanmatt is offline  
Old 02-08-2019, 06:27 PM
  #5  
Mark
iTrader: (1)
 
techrep's Avatar
 
Join Date: Jan 2009
Location: Va. Beach, VA.
Posts: 33,650
Thanked 1,752 Times in 1,580 Posts
Default

Originally Posted by Alaskanmatt View Post
Thanks for the responses, sounds like I may have been going down a rabbit hole with the IWE solenoid thought.

Would it be worth trying the ďhammer-tapĒ Iíve read about to see if it loosens it up, or should I just continue to drive it and do some switching back and forth between 2WD and 4HI? The dealer said (supposedly, you never know with their stories) that the truck was an employeeís dad who is an airline pilot. If true, he probably mostly drove it around the city and it probably sat in airport parking a lot. Maybe the 4WD just hasnít been used much.
that works 50% of the time.
techrep is offline  
Old 02-08-2019, 06:29 PM
  #6  
Sociopath Truckdriver
 
johnday's Avatar
 
Join Date: Jun 2014
Location: Barton City Michigan
Posts: 11,920
Thanked 2,387 Times in 1,963 Posts
Default

I'd try just switching it in and out for a bit. Doesn't cost anything to try that. Do you know if in fact it is going into 4X4?
You said you shut the truck down, restarted, and it worked. Maybe just try a KAM reset, not saying it's a cure all, but sometimes it resets things you'd never think of. Just disconnect the negative batt cable, turn the lights on, or just open a door to drain all the power, wait 15 minutes, then reconnect. Your clock and radio settings will likely be screwed up, maybe a couple other settings somewhere, but if it takes care of the problem, cool.
Your trans will shift weird until the controls relearn, takes around 100 miles or so for that.

What's the "hammer tap"?

Last edited by johnday; 02-08-2019 at 06:32 PM.
johnday is online now  
Old 02-08-2019, 07:32 PM
  #7  
Junior Member
Thread Starter
 
Join Date: Feb 2019
Posts: 11
Thanks: 0
Thanked 2 Times in 2 Posts
Default

Originally Posted by johnday View Post
I'd try just switching it in and out for a bit. Doesn't cost anything to try that. Do you know if in fact it is going into 4X4?
You said you shut the truck down, restarted, and it worked. Maybe just try a KAM reset, not saying it's a cure all, but sometimes it resets things you'd never think of. Just disconnect the negative batt cable, turn the lights on, or just open a door to drain all the power, wait 15 minutes, then reconnect. Your clock and radio settings will likely be screwed up, maybe a couple other settings somewhere, but if it takes care of the problem, cool.
Your trans will shift weird until the controls relearn, takes around 100 miles or so for that.

What's the "hammer tap"?
Iíll keep up with some switching back and forth and see how it does, thanks. The few times this problem has happened Iíve been on my way to work in rush-hour highway driving and itís been hard to tell if the 4WD has activated or not. If it happens again Iím hoping itíll be in a situation where I can pull onto a snowy side road where itís more obvious.

Iíve read that you can tap the transfer case motor as someone switches it to 4WD and that can get it ďunstuckĒ. Not sure if that would help with an intermittent issue like this, though.
Alaskanmatt is offline  
The Following User Says Thank You to Alaskanmatt For This Useful Post:
johnday (02-08-2019)
Old 02-08-2019, 07:40 PM
  #8  
Sociopath Truckdriver
 
johnday's Avatar
 
Join Date: Jun 2014
Location: Barton City Michigan
Posts: 11,920
Thanked 2,387 Times in 1,963 Posts
Default

Thanks, never heard of that before.
Ya, keep working it, and try that KAM reset, won't cost a thing except a few minutes.
Let us know how you make out.
johnday is online now  
Old 02-08-2019, 08:20 PM
  #9  
Junior Member
Thread Starter
 
Join Date: Feb 2019
Posts: 11
Thanks: 0
Thanked 2 Times in 2 Posts
Default

Originally Posted by johnday View Post
Thanks, never heard of that before.
Ya, keep working it, and try that KAM reset, won't cost a thing except a few minutes.
Let us know how you make out.
Well I didnít have to wait very long for it to happen again, the issue popped up when I left work this afternoon. As always, the truck had been sitting in the cold (20 degrees) for 8+ hours and I remote-started it and let it idle/warm for about 8 minutes before I left. The 4X lights never came on, I tried to determine if 4WD was activated when making a turn out of the parking lot, but honestly itís so quiet shifting into that mode that Iím only partially sure that it was activated (the turn felt a little stiff compared to 4x2, though).

Before getting onto the road I put the truck in park, turned it off, turned it right back on and the 4X light came right on and switched back and forth with no problem.

I would like to try that KAM reset next. Do you know if it would reset the aftermarket (Compustar) remote start? That is my only hesitation.
Alaskanmatt is offline  
Old 02-08-2019, 09:04 PM
  #10  
Sociopath Truckdriver
 
johnday's Avatar
 
Join Date: Jun 2014
Location: Barton City Michigan
Posts: 11,920
Thanked 2,387 Times in 1,963 Posts
Default

Originally Posted by Alaskanmatt View Post


Well I didnít have to wait very long for it to happen again, the issue popped up when I left work this afternoon. As always, the truck had been sitting in the cold (20 degrees) for 8+ hours and I remote-started it and let it idle/warm for about 8 minutes before I left. The 4X lights never came on, I tried to determine if 4WD was activated when making a turn out of the parking lot, but honestly itís so quiet shifting into that mode that Iím only partially sure that it was activated (the turn felt a little stiff compared to 4x2, though).

Before getting onto the road I put the truck in park, turned it off, turned it right back on and the 4X light came right on and switched back and forth with no problem.

I would like to try that KAM reset next. Do you know if it would reset the aftermarket (Compustar) remote start? That is my only hesitation.
I don't know about the remote start, my gut tells me no, it won't affect that, but not sure. Did you have that installed? If you think about it, the KAM reset would be just like changing out batteries. I do know, on my '17, the batt went stone cold dead on me, and I have done a KAM reset on it, and it didn't affect the OEM remote start. Maybe call the place that installed that remote?
Good news it sounds like you are getting into 4X4.
johnday is online now  

Thread Tools
Search this Thread
Quick Reply: 4x4 light intermittently doesnít illuminate


Contact Us Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: