2007 Wrangler JK Factory Service Manual 21 - TRANSMISSION AND TRANSFER CASE

MECHANISM-SHIFT

DESCRIPTION

The gear shift mechanism provides six shift positions which are:

OPERATION

MANUAL LOW (1) range provides FIRST gear only. Overrun braking is also provided in this range. MANUAL SECOND (2) range provides FIRST and SECOND gear only.

DRIVE range provides FIRST, SECOND, THIRD and OVERDRIVE FOURTH and FIFTH gear ranges. The shift into OVERDRIVE FOURTH and FIFTH gear range occurs only after the transmission has completed the shift into D THIRD gear range. No further movement of the shift mechanism is required to complete the 3-4 or 4-5 shifts.

The FOURTH and FIFTH gear upshifts occurs automatically when the overdrive selector switch is in the ON position. An upshift to FOURTH and FIFTH gears may not occur or may be delayed in some of the possible shift schedules. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/TRANSMISSION CONTROL MODULE - OPERATION)

REMOVAL


1. Remove any necessary console parts for access to shift lever assembly and shifter cables. (Refer to 23 - BODY/INTERIOR/CENTER CONSOLE - REMOVAL)
2. Shift transmission into PARK.
3. Disconnect the transmission shift cable at shift lever and shifter assembly bracket .


4. Disconnect the park-interlock cable from the shifter lever and the shifter assembly bracket.
5. Disengage all wiring connectors from the shifter assembly.
6. Remove all nuts holding the shifter assembly to the floor pan .
7. Remove the shifter assembly from the vehicle.

INSTALLATION


1. Install shifter assembly onto the shifter assembly studs on the floor pan.
2. Install the nuts to hold the shifter assembly onto the floor pan. Tighten nuts to 28 N·m (250 in.lbs.).
3. Install wiring harness to the shifter assembly bracket. Engage any wire connectors removed from the shifter assembly.
4. Install the park-interlock cable into the shifter assembly bracket and into the shifter lever.
5. Install the shift cable to the shifter assembly bracket. Push cable into the bracket until secure.
6. Place the floor shifter lever in park position.
7. Loosen the adjustment screw on the shift cable.
8. Snap the shift cable onto the shift lever pin.
9. Verify that the shift lever is in the PARK position.
10. Tighten the adjustment screw to 7 N·m (65 in.lbs.).
11. Verify correct shifter operation.
12. Verify proper BTSI operation. (Refer to 21 - TRANSMISSION/AUTOMATIC/SHIFT INTERLOCK SYSTEM - DIAGNOSIS AND TESTING) Adjust the park-interlock cable as necessary. (Refer to 21 - TRANSMISSION/AUTOMATIC/SHIFT INTERLOCK CABLE - ADJUSTMENTS)
13. Install any console parts removed for access to shift lever assembly and shift cables. (Refer to 23 - BODY/INTERIOR/CENTER CONSOLE - INSTALLATION)