Is there a indicator light for 4x4 lo and 4x4 hi on a 2006 f-150

older post 1month
you failed to say what tires are touching, dry pavement or ice/snow or off road...... MATTERS big time.......!

the operators guide tells you not to do that.
the rules for 4Hi and low are different. RTM? yet?
last year ZJ
Quadra-Trac(tm) NV242 box. it is. full and part time box.
what does it (oper guide)tell you.
stay out of part time on dry roads. (clear?)
rule 2, save rule for Low Range.
low range is not full time 4wd.
if you fail to believe it , it will wind up and go crunch

here is the direct quote.... see last line,,, its 100% real.


i you had the NV231 box, all gears are Part time, all 4wd gears stay off dry pavement.

it may be the sensor if it has one or it may be the unit it self

Go under the vehicle and check the four wheel drive linkage.

are you moving when you shift into 4 lo?

sounds like you may need the encoder motor

try looking on passenger side of front differential gears for a cylinoid , one large nut holds it in and should have a electrical plug. if this is bad your 4x4 will not engage . the bad news is it cost about 130.00 bucks but is easy to replace

4x4 selonoid switch in the transfer case was gone

check vaccum actuator on front diff?use vaccum gauge should be 25 to 30lbs to open had same problem 94 gmc sierra ext cabb 4x4 5.7 ordrive tranny

Gm has had a huge problem with their 4x4 switches on those models. Replace the switch it's about a 10 minute job.The switch is about $70.00

That light sounds like a differential lock or 4-wheel drive. This is usually found in 4-wheel drive and all-wheel drive vehicles. Being the light is "GREEN" and not amber or red tells me that it's not an abnormal problem.

Look around your dashboard or gearshifter for a button labeled 4x4 HI, 4x4 LO, 4x2 HI. sport/off road button, or a second, smaller shifter. Switch them around a little, and if it is a 4x4 selector, be sure when you drive on paved roads to have it set to 4x2 HI. 4x4 HI should only be used if you get stuck to help you get out (snow/mud) and 4x4 LO is only for off road driving (trail blazing/rock climbing/4-wheeling/mud bogging,etc.)

Also, check for any switches labled "DIFF LOCK" or 'AXLE LOCK". In most cars a green light is normal operations.

I hope I could help you find a solution to your problem.