1999 XLT 4WD issues

[99xlt99]

Greetings everyone! I have a 1999 Explorer XLT that I bought a couple years ago. I have two issues involving the 4WD. First is that when I put it in 4WD low, I never get a light showing that. It always says 4WD High, so I am not even sure if it is going into 4wd low. The previous owner told me he had had problems with the 4wd low, but that he had fixed it. I have never been able to get it into 4wd, at least that I know of.

Also, when I am in 4wd high, I get an occasional hesitation or jerk while driving, almost like a hiccup. I don't notice any RPM drops though. It seems to happen anywhere from 30mph - 55mph.

at this point I am not very confident that the 4wd system is even working properly. Any advice? TIA!

 

[strech67]

I am assuming that this is a truck with C-track, but maybe your hall sensor is malfunctioning and telling your transfer case to engage intermittently while driving...

 

[gijoecam]

For 4low, you must be stopped, in neutral, with your foot on the brakes, then flip the switch. Same process to get back into 4high.

As for the hiccup, I can't help much. Mine did the same thing a few times a few years ago, but hasn't done it since.

-Joe