Something is malfunctioning intermittently on my 2010 Ranger.
Yesterday (Monday, 10/09/17) I was leaving a rural home with a somewhat overgrown with grass gravel driveway and switched it into 4wd. While it pulled the grade without any traction control clicking from the rear end, the 4x4 Hi dash light did not come on. As an FYI, I was pulling a trailer with a motorcycle on it; I am certain that had it not gone into 4wd that I would have spun the rear tires.
So after I got out on the road I switched it back into 2wd and still, no lights.
Later in the morning I got to a level place and stopped, put it in neutral, and switched it to 4wd Lo. Still no light, and it did not go into the low range.
The dash lights are working when I first turn on the key and start the engine. Then today I switched it into 4wd high and the on indicator light came on, but I couldn't tell that it was actually on and engaged.
I don't need the 4wd very often, but when I do need it, it will be essential to avoiding a tow charge or some other issue.
What do I need to do to run this down and get it fixed?
Suggestions, wisdom, or steps towards resolving this will be appreciated.
Thanks in advance,
2010 Ranger XLT 4WD, an old Gold Wing motorcycle, 1/3rd of the bed, 10% of the stuff, and the tool shed. Her's:
2003 Taurus SEL, 1998 BMW Z3 Roadster, the house, 2/3rds of the bed, 90% of the stuff, and all of the money.