Dodge Dakota (R1). Manual — part 627
DISASSEMBLY
(1) Remove seal ring from rod guide (Fig. 93).
(2) Remove small snap-ring from servo piston rod.
Then remove piston rod, spring and washer from pis-
ton.
(3) Remove and discard servo component o-ring
and seal rings.
CLEANING
Clean the servo piston components (Fig. 94) with
solvent and dry them with compressed air.
INSPECTION
Inspect the servo components (Fig. 95). Replace the
springs if collapsed, distorted or broken. Replace the
guide, rod and piston if cracked, bent, or worn. Dis-
card the servo snap-ring if distorted or warped.
Check the servo piston bore for wear. If the bore is
severely scored, or damaged, it will be necessary to
replace the case.
Replace any servo component if doubt exists about
condition. Do not reuse suspect parts.
Fig. 93 Front Servo
1 - PISTON RINGS
2 - O-RING
3 - SNAP-RING
4 - SEAL RING
5 - PISTON ROD GUIDE
6 - SNAP-RING
7 - SERVO SPRING
8 - PISTON ROD
9 - SERVO PISTON
Fig. 94 Front Servo Piston
1 - PISTON RINGS
2 - O-RING
3 - SNAP-RING
4 - SEAL RING
5 - PISTON ROD GUIDE
6 - SNAP-RING
7 - SERVO SPRING
8 - PISTON ROD
9 - SERVO PISTON
Fig. 95 Front Servo Piston
1 - PISTON RINGS
2 - O-RING
3 - SNAP-RING
4 - SEAL RING
5 - PISTON ROD GUIDE
6 - SNAP-RING
7 - SERVO SPRING
8 - PISTON ROD
9 - SERVO PISTON
21 - 152
AUTOMATIC TRANSMISSION - 42RE
AN
FRONT SERVO (Continued)
ASSEMBLY
Clean and inspect front servo components.
(1) Lubricate new o-ring and seal rings with petro-
leum jelly and install them on piston, guide and rod.
(2) Install rod in piston. Install spring and washer
on rod. Compress spring and install snap-ring (Fig.
96).
GEARSHIFT CABLE
DIAGNOSIS AND TESTING - GEARSHIFT
CABLE
(1) The shifter lever and gate positions should be
in alignment with all transmission PARK, NEU-
TRAL, and gear detent positions.
(2) Engine starts must be possible with shift lever
in PARK or NEUTRAL gate positions only. Engine
starts must not be possible in any other gear posi-
tion.
(3) With shift lever handle in:
(a) PARK position - Apply forward force on cen-
ter of lever and remove pressure. Engine starts
must be possible.
(b) PARK position - Apply rearward force on cen-
ter of lever and remove pressure. Engine starts
must be possible.
(c) NEUTRAL position - Normal position. Engine
starts must be possible.
(d) NEUTRAL position - Engine running and
brakes applied, apply forward force on center of
shift lever. Transmission shall not be able to shift
from neutral to reverse.
REMOVAL
(1) Shift transmission into PARK.
(2) Remove the dash panel insulation pad as nec-
essary to access the gearshift cable bracket mounting
nuts.
(3) Remove nuts retaining the gearshift cable
mounting bracket to the dash panel (Fig. 97) or (Fig.
98).
(4) Disconnect cable at lower column lever and
feed cable through dash panel opening to underside
of vehicle (Fig. 99).
(5) Raise vehicle.
(6) Disengage cable eyelet at transmission shift
lever and pull cable adjuster out of mounting bracket
(Fig. 100) or (Fig. 101). Remove old cable from vehi-
cle.
Fig. 96 Front Servo
1 - PISTON RINGS
2 - O-RING
3 - SNAP-RING
4 - SEAL RING
5 - PISTON ROD GUIDE
6 - SNAP-RING
7 - SERVO SPRING
8 - PISTON ROD
9 - SERVO PISTON
Fig. 97 Cable Mounting at Dash Panel - 4X2
1 - DASH PANEL
2 - GEARSHIFT CABLE MOUNTING BRACKET
3 - GEARSHIFT CABLE
AN
AUTOMATIC TRANSMISSION - 42RE
21 - 153
FRONT SERVO (Continued)
INSTALLATION
(1) Snap the cable into the transmission bracket so
the retaining ears are engaged and snap the cable
eyelet onto the manual control lever ball stud.
(2) Lower vehicle.
(3) Route cable through hole in dash panel (Fig.
102) or (Fig. 103).
Fig. 98 Cable Mounting at Dash Panel - 4X4
1 - DASH PANEL
2 - GEARSHIFT CABLE MOUNTING BRACKET
3 - GEARSHIFT CABLE
Fig. 99 Gearshift Cable at Steering Column
1 - STEERING COLUMN
2 - GEARSHIFT CABLE
3 - GEARSHIFT CABLE LOCK TAB
Fig. 100 Gearshift Cable at Transmission - RFE
1 - GEARSHIFT CABLE
2 - RFE TRANSMISSION
3 - MANUAL LEVER
Fig. 101 Gearshift Cable at Transmission - RE
1 - GEARSHIFT CABLE
2 - RE TRANSMISSION
3 - MANUAL LEVER
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AUTOMATIC TRANSMISSION - 42RE
AN
GEARSHIFT CABLE (Continued)
(4) Seat the cable mounting bracket to dash panel
and install retaining nuts to hold the cable housing
bracket to the dash panel.
(5) Tighten the nuts to 34 N·m (25 ft.lbs.).
(6) Place the transmission manual shift lever in
the “PARK” detent (rearmost) position and rotate
prop shaft to ensure transmission is in PARK.
(7) Connect shift cable to the steering column shift
lever (Fig. 104) by snapping the cable retaining ears
into shifter bracket and snapping the cable eyelet on
the steering column ball stud.
(8) Lock the shift cable adjustment by pressing the
cable adjuster lock upward until it snaps into place.
(9) Check for proper operation of the transmission
range sensor.
(10) Adjust the gearshift cable as necessary.
ADJUSTMENTS - GEARSHIFT CABLE
Check adjustment by starting the engine in PARK
and NEUTRAL. Adjustment is CORRECT if the
engine starts only in these positions. Adjustment is
INCORRECT if the engine starts in one but not both
positions. If the engine starts in any position other
than PARK or NEUTRAL, or if the engine will not
start at all, the transmission range sensor may be
faulty.
Fig. 102 Cable Mounting at Dash Panel - 4X2
1 - DASH PANEL
2 - GEARSHIFT CABLE MOUNTING BRACKET
3 - GEARSHIFT CABLE
Fig. 103 Cable Mounting at Dash Panel - 4X4
1 - DASH PANEL
2 - GEARSHIFT CABLE MOUNTING BRACKET
3 - GEARSHIFT CABLE
Fig. 104 Gearshift Cable at Steering Column
1 - STEERING COLUMN
2 - GEARSHIFT CABLE
3 - GEARSHIFT CABLE LOCK TAB
AN
AUTOMATIC TRANSMISSION - 42RE
21 - 155
GEARSHIFT CABLE (Continued)
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