STARTING AND OPERATING
187
mode allow s the front and rear wheels to rotate at
different speed s which eliminates driveline bind ing and
component wear that is norm ally associated with driving
the vehicle in the 4 PART TIME position on dry hard
surfaced road s. This featu re provid es the safety, security,
and convenience of operating in 4 wheel drive at all times
regard less of road cond itions.
The PART TIME ind icator light, located in the instru ment
panel, alerts the driver that a four wheel drive mode
which locks the front and rear driveshafts together has
been selected . This light illuminates when the transfer
case is shifted to either the 4 PART TIME or 4LO
positions. There is no light for the 2WD, 4 FULL TIME, or
N (Neutral) positions.
When additional traction is requ ired , the 4 PART TIME
and 4LO positions can be used to lock the front and rear
driveshafts together throu gh the transfer case inter-axle
differential and force the front and rear driveshafts to
rotate at the sam e speed . This is accom plished by simply
moving the shift lever to these positions. The 4 PART
TIME and 4LO positions are intend ed for loose, slippery
road surfaces only. Driving in the 4 PART TIME and 4LO
positions on dry hard surfaced road s may cause in-
creased tire wear and damage to driveline components.
NOTE: Do not attem pt to make a shift while only the
front or rear wheels are spinning. The Selec-Trac trans- 5
fer case is not equ ipped with a synchronizer and there-
fore the front and rear driveshaft speed s must be equ al
for the shift to take place. Shifting while only the front or
rear wheels are spinning can cause damage to the trans-
fer case.
When operating you r vehicle in 4LO, the engine speed is
approxim ately three times that of the 4 ALL TIME
position at a given road speed . Take care not to oversp eed
the engine and do not exceed 25 mph (40 km/ h).
| Categories | Jeep Grand Cherokee Manuals, Jeep Manuals |
|---|---|
| Model Year | 2004 |
| Download File |
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| Document File Type | |
| Copyright | Attribution Non-commercial |
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