lamp JAGUAR X308 1998 2.G Repair Manual

Automatic Transmission/Transaxle - 4.0L NA V8 - AJ27/3.2L NA V8 - AJ26
- Diagnostic Strategy
Diagnosis and Testing
Quick Reference Fault Chart
Quick Reference Fault Chart
Special Tool(s)

Digital multimeter

Generic scantool
SymptomPossible SourcesAction
Normal transmission
operation but fault codes
stored• NOTE: If P0706 is logged ignore P0742
Output speed sensor circuit fault
TCM faulty
ABS system fault (this code may log er roneously following an ABS problem)
Position switch and D to 4 switch circuit fault
P R 4 circuit fault

*
*
*
*
*
GO to
P0721 GO to
P1603 GO to
P0742
*
*
*
Sport mode will not selectMode switch circuit fault
*GO to
P0790
*
Mode switch state lamp not
workingMode switch supply
Mode switch circuit fault
*
*GO to
P0790
*
Poor, or reduced shift
qualityPresence of EMS faults
(may affect the accuracy of the torque signal)
*GO to EMS *
Transmission temperature sensor circuit
*GO to
P0710
*
Out of sequence shiftOutput / input speed sensor circuit fault
Mechanical fault (check all other operations)
*
*GO to
P1731
*
No torque converter lock-
upP R 4 circuit fault
*GO to
P0743
*
Mechanical fault, should P R 4 be OK
*GO to
P0741
*
Harsh shifts, engine stalling (torque converter stuck on)P R 4 circuit fault
Mechanical fault, should P R 4 be OK
*
*GO to
P0742
*
Default to 4th gearSolenoid / pressure regulator supply from TCM
*GO to
P0702
*
• NOTE: If the code logs wh
en 3rd is selected, then the D to 4 switch is the most probable cause If the code logs when D is selected fro m the LH side of the gate,
then check selector cable adjustment
'J gate' or selector ca ble out of adjustment
D to 4th switch
Rotary position switch circuit
*
*
*GO to
P0706
*
Input speed sensor circuit fault
Input speed sensor faulty
*
*GO to
P0715
*
Solenoid #1 circuit fault
*GO to
P0753
*
Solenoid #2 circuit fault
*GO to
*

Automatic Transmission/Transaxle - 4.0L NA V8 - AJ27/3.2L NA V8 - AJ26
- Extension Housing O-Ring Seal
In-vehicle Repair
Removal
1. Select N position.
2. Raise the vehicle for access.
3. Remove the front muffler, 30.10.18.

4. Locate a transmission jack, Epco V-100 or similar, under the
transmission unit.
Adjust the angle of the jack to suit the transmission.
Secure the side clamps.
Pass the safety chain over the transmission unit and
secure.
Take the weight of the transmission and engine.

5. Remove the engine rear mounting bracket.
1. Remove the engine rear mounting to bracket bolt.
2. Remove the mounting bracket to body bolts.
6. Gently lower the transmission jack.

7. CAUTION: Under no circumstan ces remove the driveshaft
to flexible coupling fixings.
Detach the driveshaft fro m the transmission unit.
Mark the position of the coupling to drive flange.
Remove the three bolts which secure the transmission
drive flange to the flexible coupling .
8. Remove the rear extension housing assembly.
1. Remove the ten bolts, noting their location for installation.
2. Remove and discard the O-ring.

2. Reposition the tank.

8. Install engine lifting bracket 303 - 536 at the rear LH.

9. Support the engine using 303 - 021.
1. Adjust and locate the stan ds in the LH and RH fender
channels and tighten the beam fixings.
2. Engage the support hook s in the lifting brackets.
3. Tighten the support hook adjusters and take the weight of the engine.
10. Raise the vehicle for access.
11. Remove the LH downpipe cata lytic converter (17.50.09).
12. Remove the front muffler (30.10.18).
13. Remove the RH downpipe catalytic converter (17.50.09 and
17.50.10).
14. Drain the transmission fluid, (44.24.02).

15. Locate a transmission jack, Epco V-100 or similar, under the
transmission unit.
Adjust the angle of the jack to suit the transmission.
Secure the side clamps.
Pass the safety chain over the transmission unit and
secure.

Automatic Transmission/Transaxle - 4.0L SC V8 - AJ26 -
Lubricants, Fluids, Sealants and Adhesives - Automatic Transmission (Supercharged Vehicles)
Capacities - Automatic Transmission (Supercharged Vehicles)
Torques - Automatic Transmission (Supercharged Vehicles)
Internal Rear Ratios - Automatic Transmission (Supercharged Vehicles)


UnitSpecification
Transmission fluidShell ATF 3403 - M115
UnitLiters
Transmission assembly (with torque converter)9,5
ComponentNm
Bolt - EMS bracket to cylinder head43 - 53
Bolt - Driveshaft coupling to transmission75 - 88
Bolt - Fluid pan (clamp) to transmission case8 - 10
Bolt - Harness heatshield to case and fluid pan clamp9 - 11
Bolt - Muffler bracket to transmission case43 - 57
Bolt - Rear engine (isolation) mounting to mounting bracket22 - 28
Bolt - Rear engine mounting brac ket to adapter (transmission case)39 - 51
Bolt - Rear engine mounting bracket to body22 - 28
Bolt - Torque converter to drive plate43 - 57
Bolt - Transmission unit to engine43 - 57
Bolt - Valve body to transmission case7 - 9
Bolt - 'W' clip (fluid cooler pipe) to cylinder block7 - 9
Banjo bolt - Cooler pipe to transmission unit30 - 40
Nut - Coolant header tank to bracket4 - 5
Nut - Selector cable abutment to transmission case7 - 10
Nut - Selector cable ball end to selector lever7 - 10
Nut - Transmission output shaft flange200
Plug - Fluid pan drain20 - 24
Screw - Coolant header tank to bracket4 - 5
Screw - Filler tube to transmission case14 - 18
GearRatio
1st3,59:1
2nd2,19:1
3rd1,41:1
4th1,00:1
5th0,83:1
Reverse-1,93 (Normal mode)
Reverse-3,165 (Sport mode)

Automatic Transmission/Transaxle - 4.0L SC V8 - AJ26 - Main Control
Valve Body
In-vehicle Repair
Removal
• NOTE: This procedure will not remove re sidual fluid from the torque converter.
1. Disconnect the battery ground lead.
2. Raise the vehicle for access.
3. Remove the RH catalytic converter; refer to Operation
17.50.10.

4. Remove the harness heatshield lower fixing.
Remove the screw heatshield / fluid pan clamp.

5. Remove the harness heatshield.
Pull the heatshield from under the clip.

6. Disconnect the transmission link harness connector.
1. Release the locking lever.
7. Release the (transmission case mounted) female connector.
Remove the (center) retaining bolt.

Automatic Transmission/Transaxle - 4.0L SC V8 - AJ26 - Transmission
Internal Wiring Harness Electr ical Connector O-Ring Seals
In-vehicle Repair
Removal
1. Disconnect the batt ery ground cable.
2. Open the engine compartment and fit paint protection sheets.
3. Raise the vehicle for access.

4. WARNING: TRANSMISSION FLUID MAY CAUSE SEVERE
BURNS, ENSURE THAT ALL SAFET Y PROCEDURES ARE OBSERVED
AND THAT THE RECEPTACLE FOR WASTE HAS SUFFICIENT
CAPACITY.
Drain the transmission fluid.
Carefully remove the drain pl ug and discard the sealing
washer.

5. Remove the harness heatshield lower fixing.
Remove the screw heatshield / fluid pan clamp.

6. Remove the harness heatshield.
Pull the heatshield from under the clip.
7. Disconnect the transmission link harness connector.
1. Release the locking lever on the guide bush and disconnect the harness connector.

brackets.
3. Tighten the support hook adjusters to take the weight of the engine.
12. Raise the vehicle for access.
13. Remove the LH downpipe catalytic converter. Refer to
Operation 17.50.09.
14. Remove the front muffler. Re fer to Operation 30.10.18.
15. Remove the RH downpipe catalytic converter. Refer to
Operation 17.50.09 and 17.50.10.
16. Drain the transmission fluid. Refer to Operation 44.24.02.

17. Locate an Epco V-100, or sim ilar lift, under the transmission
unit.
Adjust the angle of the lift to suit the transmission.
Secure the side clamps.
Pass the safety chain over the transmission unit and
tighten the clamp to secure the assembly.

18. Remove the rear engine mounting bracket.
1. Remove the centre bolt from the engine/transmission
mounting.
2. Remove the four bolts which secure the mounting
bracket to the body.
19. Detach the driveshaft (prop- shaft) from the transmission
drive flange.
If the transmission is to be refitted, mark the position of
the coupling relative to the drive flange.
19. CAUTION: Under no circ umstances remove the
driveshaft to flexible coupling fixings.
1. Remove the transmission drive flange to flexible
coupling fixings.

34. NOTE: Do not allow the converter to detach from the
transmission.
Remove the transmission / converter assembly from the
vehicle.
Lower the lift and remove the transmission, ensuring that
the torque converter spigot disengages cleanly.

35. Remove the side clamps and chain for access.

36. Remove the front muffler mounting bracket.
Remove the two bolts which secure the bracket to the
transmission case.
37. Remove the transmission dipstick tube.
1. Remove the fixing which secures the tube to the case.

Discard the filler tube 'O' ring. 2. Fit a blanking plug to the transmission casing orifice.

38. Remove the harness link lead.
1. If required, slacken the harness heatshield spring
clamp bolt.
2. Remove the heatshield lower bolt.
3. Release the harness multi- lock lever, disconnect and
remove the harness.
39. If appropriate, fit retainin g straps to the converter /
transmission assembly.

Exhaust System -
Torques


ComponentNm
Nut - Downpipe catalytic converter to exhaust manifold14 - 18
Bolt - Downpipe catalytic converter to lower mounting bracket39 - 51
Bolt - Front muffler mounting to gearbox (SC)22 - 28
Bolt - Front muffler mounting to front muffler cross brace (SC)22 - 28
Bolt - Over-axle mounting to rear suspension A-frame22 - 28
Torca clamps52 - 68
Oxygen sensor to downpipe40 - 50