I noticed this morning driving up some snow covered hills. Normaly the back end will kick out to side about a foot and then the "4X Auto" kicks in and straightens it right out. Today it happened twice and the front wheels did not engage. I got to work and pressed the "4 High" several times and nothing happened, it did not engage and the 4W lights on the dash did not light up.
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Hello It stands for automatic 4 wheel drive, the WD drive will engage when the vehicle senses tire slippage. Good to use when driving on somwhat snow covered roads where some driving might be on on the pavement , some on snow. Not good to use the 4wd when on pavement especillay when turning. OK.
If I were you I would take it back to the dealer and tell them your concerns. They may have quick simple fixes that will take care of it. A good dealer will want to make you happy and will do what it takes especially on a brand new car.
normaly you drive in 2 wheel dive rear whee lls driving jeep
when you select 4 wheel high or 4 wheel low you engage all 4 wheels bring intthe front axle and all 4 wheels drive high box for slippery roads ice snow etc
important low box only for extreme conditions such as heavy mud deep snow etc
LOW MUST BE SELECTED WHEN STOPPED OTHER WISE DAMAGE TO TRANSMISSION
hope this helps
check both front lockouts,1 side or the other could have broken,unlock 1 side and reach underneath and try turning the axel on the other side-----if it turns all the way around, then replace that lockout,if it doesnt turrn then try unlocking that side and lock in the other side and see if you can turn it,if so then replace that lockout.if not then something might be wrong with the transfercase to the way it engages
This is normal, depending on the depth of the hill. This is frequent with standard/manual cars on uphills, they can roll back, but with automatic vehicles they usually have a small amount of throttle, (you'll notice this when putting your vehicle from park into drive with your foot off the break, it'll start slowly moving forward)
Now on the hill, if it's a steep incline your car will move backwards, it all depends on how high your throttle (the car itself) is, and the incline depth of the hill.
It sounds like it is loosing spark somewhere on the ignition circuit. e.g HT leads, distributor cap, one or more spark plugs faulty. The above usually happens when the engine is taking more load than usual, like going up a hill and the r.p.m at about 1500 - 3000.Try it again in a lower gear 1st or 2nd with the motor r.p.m high, about 5000 revolutions per minute.
If its not engaging into 4 WD the vaccum actulator is more than likely stuck. The actulator is located on the front of the axle next to the the front gear hub it will have a plastic cover over it. Unbolt the two 10mm bolts that hold the cover on and spray down with WD-40, also pull back the rubber cover thats on the actulator staff and spray it. You might have to hit the staff a few times to get it to move just make sure its in 4WD. I had the same problem, that part is exposed to alot of water, snow, salt and so on. Or you could just replace it but its cheaper to spray it down with WD-40