I drove it with the 4 wheel drive on dry pavement for a long while and my mileage has gotten poor,what could have gotten damaged from my mistake?

first time used 4WD on this car?????
what transfer case is there,? key fact #1 not told
JF1A<<< my guess this.
NOT TOLD YOU WHAT THE TIRES ARE ROLLING ON
PAVEMENT, DIRT, OFF-ROAD.. ICE, SNOW OR WHAT.
THE CAR IS NOT AWD
THE CAR IS NOT FULL TIME 4WD
IT IS PART TIME 4WD.
THE USERS MANUAL TOLD YOU THIS


Four?wheeldrive models-Toyota rec-
ommends not using four?wheel drive on
dry hard?surfaced roads, because four?
wheel driving wil l cause unnecessary
noise and wear,and poor fuel econo-
my.

WHAT HAPPENS IS DAMAGE TO THE TRANSER CASE MAIN CHAIN OR FAR FAR WORSE.
or
google
"what part time 4 wheel drive means."
it means there is no center Differential to have AWD

SAME GUIDE SAID

Four?wheel DriveSystemWarning
Buzzer(four?wheel drive models)
This buzzer reminds you that the transfer
mode is not selected correctly.
If the buzzer sounds when you shift the
transfer from "2 WD" to "4H", "4L" to "4H",
"4H"to "4L",or"4L"to "2WD"mode,follow the instructions in"Four?wheel drive
system"on page 239 in Section 1?7.

TO EXIT 4WD, IF SELECTED INCORRECTLY ON DRY PAVEMENT.
GET 1 TIRE OF THE TRUCK ON LOSE DIRT ,GRAVEL ,GRASS. AND SHIFT TO 2WD.
AND STAY OUT OF 4WD UNTIL LEARN HOW PART TIME WORKS.,

4WD IS FOR
DIRT
FOR ICED OVER WHAT EVER.
FOR PACKED SNOW OR DRIFTS.

NOT FOR DRY PAVEMENT AT ALL. OR EVEN WET

did you drive to dirt and see if it unsticks?
try side of road , at dirt.
first off,
no 4wd system stated, which kind.? and WHAT MODE?>???????
and if using locked mode, 4wd it not for pavement, and will do damage using locked mode, or part time 4wd on dry pavement , no ice means dry. at the least its dangerous. using locked if you dont know what you are doing, use AWD.

why are you in 4wd, do tell?
see the word CANT here.
read it and believe it.

http://en.wikibooks.org/wiki/Jeep_Liberty/Transfer_Cases


use only AWD (if you have it) on dry pavement
or as the lost operator guide told you... .lost that , even read it yet?

part time or awd ?
do no engage part time 4wd on dry pavement.!! only on ice or dirt.
do post what your tires are touching? dirt or pavement????????

if stuck in 4L , on dry pavement , pull over to side of road, dirt
then shift out. if no dirt anywhere? sand or gravel or grass.?
then jack up one wheel then deselect 4Low. back do 2WD
options for your car, (do post what you have)
qoute sales brochure:
Those going 4WD can enjoy the standard Command-Trac II, or opt for the Selec-Trac II, featuring full-time AWD, 4WD Lo and a rearward-biased torque split. (end quote)

how you drive both cars, varies greatly.
in your glove box is an operators guide , did you read that yet
under how to drive in 4wd or awd.??????????

DO not use 4wd on dry pavement. do not. its for
ice, snow,or dirt.
if you do that and make a turn , it winds up the driveline. damage.
put in the dirt, at side of road, and get it out of 4wd.
read the manual on part time 4wd, its not AWD and has no center diferental to drive on hard pavement.

see stop driving. ..here


http://www.fixkick.com/part-time-test.html

RTM then RTM again......

no year?
never drive, part time 4wd on pavement, unless said pavement
is ice or snow covered.
only AWD allows pavement (tires direct upon) driviing.
part time 4wd is for offroad , off pavement driving,
this is because 4wd has no center differential.
http://en.wikipedia.org/wiki/Four-wheel_drive

and with out such, winds up the drive line fast. and breaks it.

wiki states (no year stated by you)
Part-time four-wheel drive was standard on all models. to 1991
then came
ActivTrak 4WD
cept
4H (high-range full time four-wheel drive), 4HLc (high-range four-wheel drive with locked center differential) and 4LLc (low-range four-wheel drive with locked center differential
so do not use LOCKED on pavement. on active track. only 4H
the wiki states the Super-select is retained 2006 to present.
Super-Select 4WD II

read the glove box manual under 4wd

The RAV4 is a 4 wheel drive vehicle.
All wheel drive is when all four wheels have power at all times. This can be permanent or manual engaged. Clutches are used to prevent tire damage.
4 wheel drive is when one set of wheels has power and the other two can be engaged manually or automatically.
You should use 4 wheel drive when in mud or snow and extra traction is needed. 4 wheel drive can not be used on dry pavement.

Hers a link that may help you on your way again :)
http://www.automotiveforums.com/t1061718-discuss2000_silverado_stuck_in_4wd__service_4wd_light_on.html

This is normal for a 4X4 to do, 4WD on a Jeep with out a "full time mode" is only meant for wet and slippery conditions. Leaving it in 4WD on dry pavement can damage the drive line

It sounds like you are driving in 4wd drive on dry pavement. The front drive axles do not work like the rear differential. When you turn, the outside front wheel must travel farther than the inside wheel, therefore they are traveling through the turn at different speeds. If you are on dry pavement, this causes the gears to bind. You don't notice this on slick surfaces because the outside wheel will slip instead of bind up the gears. You should not use 4wd on dry pavement. That's the advantage of push button, or shift on the fly, 4wd. You can shift back to 2wd when you encounter dry pavement. All wheel drive vehicles don't have this problem because they have a limited slip front differential as opposed to a locking differential on 4wd. Hope I didn;t confuse you too much.

It's probably ok. Take it on a grassy area, or unpaved road, try the 4wd out. If you hear any noises while turning, it could be worn u joint shafts in one or both front wheels, but this can happen from normal wear and tear. If there is no problem (noises or performance) when driving normally on unpaved surface, everything is ok, and anyway, just turning the wheel a couple of times on dry pavement isn't enough to do damage.