Range Rover. Manual — part 103
LAND ROVER V8
13
REPAIR
MASS AIR FLOW (MAF) SENSOR - up to 99MY
Service repair no - 19.22.25
Remove
1. Disconnect battery negative lead.
2. Loosen hose clip. Release intake hose from
MAF sensor.
3. Disconnect multiplug from MAF sensor.
4. Release 2 clips and remove MAF sensor from air
cleaner.
5. Collect ’O’ ring seal.
Refit
6. Ensure mating faces of air cleaner, MAF sensor
and intake hose are clean.
7. Fit ’O’ ring to MAF sensor.
8. Fit MAF Sensor to air cleaner. Secure with clips.
9. Connect multiplug to MAF sensor.
10. Connect intake hose. Secure with clip.
CAUTION: Failure to connect intake hose
securely will allow unmetered air to enter
the engine, causing running problems.
11. Reconnect battery negative lead.
MASS AIR FLOW (MAF) SENSOR - from 99MY
Service repair no - 19.22.25
Remove
1. Release fixings and remove battery cover.
2. Disconnect battery earth lead.
3. Disconnect multiplug from MAF sensor.
4. Loosen clip screw and release air intake hose
from MAF sensor.
5. Release 2 clips and remove sensor from air
cleaner.
Refit
6. Position sensor to air cleaner and secure clips.
7. Position air intake hose and tighten clip screw.
8. Connect multiplug.
9. Connect battery earth lead.
10. Fit battery cover and secure with fixings.
19
FUEL SYSTEM
NEW RANGE ROVER
14
REPAIR
FUEL RAIL AND INJECTORS - up to 99MY
Service repair no - 19.60.04 - Fuel Rail
Service repair no - 19.60.12 - Injectors
Remove
1. Disconnect battery negative lead.
2. Depressurise fuel system.
See this section.
3. Release plenum chamber and place aside.
See
this section.
4. Release purge hose, crankcase breather hose
and pressure regulator vacuum hose from ram
housing.
5. Remove 6 bolts securing ram housing to inlet
manifold.
6. Place small packing block on inlet manifold.
Lever between packing block and ram pipe
housing to break seal.
CAUTION: Do not lever against fuel rail.
7. Remove ram housing from 2 dowels.
8. Place cloth over inlet manifold to prevent ingress
of debris.
LAND ROVER V8
15
REPAIR
9. Disconnect 8 injector multiplugs.
10. Disconnect fuel temperature sensor multiplug.
11. Disconnect fuel feed hose from fuel rail.
12. Disconnect fuel return hose from pressure
regulator pipe.
NOTE: Advanced EVAPS vehicles have a
threaded connection to the return hose.
13. Remove 6 nuts securing fuel rail and ignition coil
bracket to inlet manifold.
14. Release ignition coil bracket from inlet manifold
studs. Place aside.
15. Release injectors from inlet manifold and remove
fuel rail assembly.
Do not carry out further dismantling if
component is removed for access only.
16. Remove 8 clips securing injectors to fuel rail.
Remove injectors.
17. Remove 2 ’O’ rings from each injector and
discard.
18. Remove 2 screws securing fuel pressure
regulator to fuel rail.
19. Release return pipe from clip. Remove pressure
regulator assembly.
20. Remove ’O’ ring from fuel pressure regulator and
discard.
19
FUEL SYSTEM
NEW RANGE ROVER
16
REPAIR
Refit
21. Ensure mating surfaces between inlet manifold
and ram pipe housing are clean.
22. Ensure all locations in fuel rail and inlet manifold
are clean.
23. Fit new ’O’ rings to injectors and fuel pressure
regulator.
24. Lubricate ’O’ rings with silicone grease.
25. Fit fuel pressure regulator to fuel rail. Secure
with bolts. Tighten to
10 Nm (7 lbf.ft)
26. Engage regulator return pipe in clip.
27. Fit injectors to fuel rail. Secure with clips.
28. Position fuel rail to inlet manifold. Engage
injectors, one bank at a time.
29. Position ignition coil bracket on inlet manifold
studs.
30. Secure ignition coil bracket and fuel rail to inlet
manifold with nuts. Tighten to
8 Nm (6 lbf.ft)
31. Connect return hose to pressure regulator pipe.
Secure with clip.
32. Connect fuel feed pipe to fuel rail. Tighten union
to
16 Nm (12 lbf.ft)
33. Connect multiplugs to fuel injectors and fuel
temperature sensor.
34. Remove cloth from inlet manifold.
35. Apply a thin, uniform coating of Loctite 577
sealant to mating face of inlet manifold.
36. Fit ram pipe housing to inlet manifold. Secure
with bolts. Tighten to
24 Nm (18 lbf.ft)
37. Connect purge hose, crankcase breather hose
and pressure regulator vacuum hose to ram pipe
housing.
38. Fit plenum chamber.
See this section.
39. Reconnect battery negative lead.
40. Start engine. Check for leaks around fuel rail and
injectors.
FUEL RAIL AND INJECTORS - from 99MY
Service repair no - 19.60.04 - Fuel Rail
Service repair no - 19.60.12 - Injectors
Remove
1. Remove upper inlet manifold gasket.
See
MANIFOLD AND EXHAUST SYSTEM, Repair.
2. Release HT leads from clips on rocker covers
and from spark plugs.
3. Disconnect multiplugs from coils.
4. Remove 2 lower coil fixing bolts and remove coil
assembly.
5. Position absorbent cloth beneath fuel pipe to
catch spillage.
6. Disconnect fuel feed hose from fuel rail
CAUTION: Plug the connections.
7. Release injector harness clips from fuel rail and
disconnect injector multiplugs.
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