Dante1

Hello everyone,
I am pretty new to the 4x4 world as my previous truck was a 4x2 and I also have a Volvo AWD.
My question is that when I have it on 4x4 high and try to turn at low speed(backing up or turning into a parking space), I feel a crunching sound in the front end and I have to push down on the gas pedal to get the truck to move. The service manager told me that it was normal but it doen`t sound normal to me.
Can anyone give me their opinion on this? Is it normal or is something really wrong.

Thanks,

Dante1

djfllmn

iTrader: (1)

yes thats normal and you better stop that before you break something

techrep

iTrader: (1)

you can not drive on dry pavement and try to turn like that in 4WD... not good for you system.. read your owners manual

hamptonj

4wd should only be used off road.. My salesman and had service manual told me that

techrep

iTrader: (1)

it really will not hurt the system if you drive stright and do not turn.. i exercise my system this why all the time.. on a long stright stretch of roadway i will kick into 4H for a few miles.

driver444

Read post #2 of this thread. I wrote it, a while back for somebody else with the same question.



https://www.f150forum.com/f34/explan...8/#post3638901

FL5OVE

Ok so if I were to drive in 4x4 in snow and make a turn, is this bad? Not going to lie, I've done this several times. I had not noticed any binding or noises when doing so, so the thought that I may be causing damage did not occur to me. So 4x4 high and low are for straight driving only? I thought that is what the rear locker is for. I am so confused and disturbed that I may have caused damage to my truck.

conger

If you're using the 4wd on dry pavement you will experience drive train bind up. It will make some unpleasant sounds and buck some and will wear things out prematurely.
When in 4wd, the front and rear wheels are trying to turn at the same speed. When you're turning corners the front wheels travel farther than the rear. Which will cause binding and extra stress on U joints and cv joints.
In the old days of manual hubs, we use to have to back up in 4wd to release the pressure and allow the hub to release.

GetYaFordOn

The Rear wheels are just going to push your front wheels along if you are trying anything more than a half turn with 4x4 on in the snow. Probably won't hurt it in mud and snow but I wouldn't turn my wheels all the way in 4x4.

Traction is your enemy in 4x4 while turning. AWDs can handle it fine. 4x4s can't.

driver444

NO, You Can turn in 4wd. We're just saying that if you "feel" or "hear" that binding, you probably have too much traction (not slippery enough) to be in 4wd! if you're on slippery ground, you will not feel anything because the tires that would normally bind on dry pavement, are allowed to slip in the snow. This is OK. That binding is what causes the damage, and wear. No binding=no damage!
And not to add confusion, but even though it's OK to turn in 4wd, I personally try to avoid "lock to lock" turns in 4wd. usually it's unnecessary anyway, but it puts undue stress on everything.
Again... read this so I don't have to type it again
https://www.f150forum.com/f34/explan...8/#post3638901