Range Rover P38
LAND ROVER V8
35
REPAIR
Refit
45. Clean mating faces of plenum chamber and ram
housing.
46. Connect coolant hose to water jacket and secure
with clip.
47. Connect second coolant hose to water jacket
and secure with clip.
48. Remove hose clamps.
49. Apply a thin, uniform coating of Loctite 577
sealant to mating face of plenum chamber.
50. Fit plenum chamber to ram housing.
51. Fit bolts securing plenum chamber to ram
housing and tighten to
24 Nm (18 lbf.ft)
52. Connect multiplugs to stepper motor and throttle
potentiometer.
53. Connect purge hose to plenum chamber. Ensure
connector is securely mated.
54. Connect breather hose to plenum chamber.
55. Position harness to throttle linkage bracket and
secure clip.
56. Engage throttle cable abutment clip to bracket.
57. Align throttle cable to throttle linkage, fit clevis
pin and split pin.
58. Position cruise control cable abutment to bracket
and secure with ’C’ clip.
59. Align cruise control cable to throttle linkage, fit
clevis pin and split pin.
60. Adjust throttle cable.
See Adjustment.
61. Connect air intake hose to plenum chamber and
secure with clip.
62. Connect battery and fit cover.
63. Top up cooling system.
64. Check base idle speed. Adjust if necessary.
If 4.6
See ENGINE TUNING DATA, Information.
If 4.0
See ENGINE TUNING DATA, Information.
PLENUM CHAMBER - from 99MY
Service repair no - 19.22.46
Remove
1. Remove upper inlet manifold gasket.
See
MANIFOLD AND EXHAUST SYSTEM, Repair.
2. Remove 4 bolts securing throttle body to plenum
chamber, remove throttle body and collect
gasket.
3. Remove breather hose adaptor.
4. Remove 4 bolts securing plenum chamber to
upper manifold and remove plenum chamber.
5. Collect plenum chamber gaskets.
Refit
6. Clean plenum chamber and upper manifold
mating faces.
7. Using new gaskets, position plenum chamber, fit
bolts and tighten to
22 Nm (16 lbf.ft).
8. Fit and tighten breather adaptor to
6 Nm (4.5
lbf.ft).
9. Clean plenum chamber and throttle body mating
faces.
10. Using a new gasket, position throttle body, fit
bolts and tighten to
9 Nm (6 lbf.ft).
11. Fit upper inlet manifold gasket.
See MANIFOLD
AND EXHAUST SYSTEM, Repair.