2010 JAGUAR XFR fuel pump

Symptom Possible Cause Action (EGR) valve stuck open
Fuel pump
Evaporative emissions purge
valve care manual and the relevant sections of the
workshop manual.
Read DTCs and refer to DTC Index in this
section for electronic engine control tests
Refer to the relevant section of the
workshop manual and check the Exhaust Gas
Recirculation (EGR) valve and associated
hoses and connections.
For fuel system tests refer to the relevant
section of the workshop manual
Refer to the relevant section of the
workshop manual and check the purge valve
and associated hoses and connections. Difficult hot start
Injector leak
Electronic engine controls
Evaporative emissions purge
valve
Fuel pump
Ignition system
EGR valve stuck open
Refer to the relevant section of the
workshop manual, carry out injector leak
tests, install new injectors as necessary.
Read DTCs and refer to DTC Index in this
section for electronic engine control tests
Refer to the relevant section of the
workshop manual and check the purge valve
and associated hoses and connections.
For fuel system tests refer to the relevant
section of the workshop manual
For ignition system tests refer to the
relevant section of the workshop manual
Refer to the relevant section of the
workshop manual and check the Exhaust Gas
Recirculation (EGR) valve and associated
hoses and connections. Difficult to start after hot soak
(vehicle standing, engine off, after
engine has reached operating
temperature)
Injector leak
Electronic engine controls
Evaporative emissions purge
valve
Fuel pump
Ignition system
EGR valve stuck open
Refer to the relevant section of the
workshop manual, carry out injector leak
tests, install new injectors as necessary.
Read DTCs and refer to DTC Index in this
section for electronic engine control tests
Refer to the relevant section of the
workshop manual and check the purge valve
and associated hoses and connections.
For fuel system tests refer to the relevant
section of the workshop manual
For ignition system tests refer to the
relevant section of the workshop manual
Refer to the relevant section of the
workshop manual and check the Exhaust Gas
Recirculation (EGR) valve and associated
hoses and connections. Engine cranks too fast/slow
Compressions high/low
Battery
Starting system
Refer to the relevant section of the
workshop manual, carry out compression
tests.
Ensure the battery is in a fully charged and
serviceable condition. Refer to the battery
care manual and the relevant sections of the
workshop manual.
For starting system tests refer to the
relevant section of the workshop manual Engine stalls Engine stalls soon after start
Breather system
disconnected/restricted
ECM relay
Electronic engine controls
Ignition system
Air intake system restricted
Air leakage
Fuel lines
Ensure the engine breather system is free
from restriction and is correctly installed
Read DTCs and refer to DTC Index in this
section for ECM relay tests
Read DTCs and refer to DTC Index in this
section for electronic engine control tests
For ignition system tests refer to the
relevant section of the workshop manual
Check for blockage in air cleaner element
and air intake system
Check for leakage in air intake system
For fuel system tests refer to the relevant
section of the workshop manual

Symptom Possible Cause Action Engine stalls on overrun
ECM relay
Throttle position (TP)
sensors
Read DTCs and refer to DTC Index in this
section for ECM relay and TP sensor tests Engine stalls at steady speed
ECM relay
crankshaft position sensor
TP sensors
Read DTCs and refer to DTC Index in this
section for ECM relay, crankshaft position
sensor, and TP sensor tests Engine stalls with speed control
enabled
ECM relay
Read DTCs and refer to DTC Index in this
section for ECM relay tests Engine stalls when manoeuvring
ECM relay
TP sensors
Additional engine loads
(PAS, air conditioning, etc)
Transmission malfunction
CAN malfunction
Read DTCs and refer to DTC Index in this
section for ECM relay, and TP sensor tests
Check for excessive loads being placed on
the engine from PAS, air conditioning
systems etc.
Refer to the workshop manual or
transmission troubleshooting guide for
transmission system tests.
Refer to the relevant section of the
workshop manual and the electrical wiring
diagrams to perform CAN network tests. Poor driveability Engine hesitates/poor acceleration
Fuel pressure, fuel pump,
fuel lines
Injector leak
Air leakage
Electronic engine controls
Ignition system
EGR valve stuck
Transmission malfunction
Restricted pedal travel
(carpet, etc)
For fuel system tests refer to the relevant
section of the workshop manual
Carry out fuel injector leak tests, install new
injectors as necessary.
Check for leakage from air intake system
Read DTCs and refer to DTC Index in this
section for electronic engine control tests
For ignition system tests refer to the
relevant section of the workshop manual
Refer to the relevant section of the
workshop manual and check the Exhaust Gas
Recirculation (EGR) valve and associated
hoses and connections.
Refer to the workshop manual or
transmission troubleshooting guide for
transmission system tests.
Ensure accelerator pedal is free from
restriction Engine backfires
Fuel pump, fuel lines
Air leakage
Electronic engine controls
Ignition system
Sticking variable camshaft
timing (VCT) hub
For fuel system tests refer to the relevant
section of the workshop manual
Check for leakage from air intake system
Read DTCs and refer to DTC Index in this
section for electronic engine control tests
For ignition system tests refer to the
relevant section of the workshop manual
Read DTCs and refer to DTC Index in this
section for VCT system tests Engine surges
Fuel pump, fuel lines
Electronic engine controls
Ignition system
For fuel system tests refer to the relevant
section of the workshop manual
Read DTCs and refer to DTC Index in this
section for electronic engine control tests
For ignition system tests refer to the
relevant section of the workshop manual Engine detonates/knocks
Electronic engine controls
Fuel pump, fuel lines, fuel
quality
Air leakage
Sticking VCT hub
Read DTCs and refer to DTC Index in this
section for electronic engine control tests
For fuel system tests refer to the relevant
section of the workshop manual
Check for leakage from air intake system
Read DTCs and refer to DTC Index in this
section for VCT system tests www.JagDocs.com

Item Description A Unlocked condition B Locked condition 1 Clutch plate 2 Clutch piston 3 Torque converter body 4 Turbine 5 Impeller 6 Stator 7 Piston chamber 8 Turbine chamber The lock-up clutch is a hydro-mechanical device which eliminates torque converter slip, improving fuel consumption. The
engagement and disengagement is controlled by the TCM to allow a certain amount of controlled 'slip'. This allows a small difference in the rotational speeds of the impeller and the turbine which results in improved shift quality. The lock-up clutch
comprises a piston and a clutch friction plate.

In the unlocked condition, the oil pressure supplied to the piston chamber and the turbine chamber is equal. Pressurized fluid
flows through a drilling in the turbine shaft and through the piston chamber to the turbine chamber. In this condition the clutch
plate is held away from the torque converter body and torque converter slip is permitted.

In the locked condition, the TCC spool valves are actuated by the EPRS. The fluid flow in the unlocked condition is reversed and the piston chamber is vented. Pressurized fluid is directed into the turbine chamber and is applied to the clutch piston.
The piston moves with the pressure and pushes the clutch plate against the torque converter body. As the pressure increases,
the friction between the clutch plate and the body increases, finally resulting in full lock-up of the clutch plate with the body.
In this condition there is direct mechanical drive from the engine crankshaft to the transmission planetary gear train.

FLUID PUMP

The fluid pump is an integral part of the transmission. The fluid pump is used to supply hydraulic pressure for the operation of
the control valves and clutches, to pass the fluid through the transmission cooler and to lubricate the gears and shafts.
The ZF 6HP28 fluid pump is a crescent type pump and is located between the intermediate plate and the torque converter. The
pump has a delivery rate of 16 cm3
per revolution.

Published: 01-Aug-2012
Fuel System - General Information - Fuel System Pressure Release V8 5.0L
Petrol/V8 S/C 5.0L Petrol
General Procedures

Draining

1. Remove the fuel pump fuse.

2. Remove the fuel filler cap.


3. CAUTION: When depressurising the fuel system, make sure that
there is no throttle input. Failure to follow this instruction may cause
damage to the vehicle.
Start the engine and allow it to idle until the engine stalls.

4. Crank the engine for approximately five seconds to make sure that the
fuel rail pressure is released.

Filling


1. NOTE: Make sure all repairs have been carried out before
proceeding to the following steps.
Install the fuel pump fuse.

2. Install the fuel filler cap.

3. Read and clear stored DTC fault codes.

Fuel system Electronic returnless fuel system (ERFS) Fuel tank Multi layer plastic Fuel tank sender unit Mounted on the body of the fuel pump Fuel filter Located in the fuel tank Fuel pump Electric,located in the fuel tank System pressure 4.5 bar - 65 lbf/in2 Capacities Liters Fuel tank capacity 71.1 (total) / 69.5 (useable) Torque Specifications
Item Nm lb-ft lb-in Fuel tank filler pipe bracket retaining nut 9 - 80 Fuel tank filler pipe bracket retaining bolt 9 - 80 Fuel tank support strap retaining bolts 35 26 - Fuel / vapor tube bracket retaining bolt in engine compartment 5 - 44 Fuel / vapor tube bracket to underbody retaining bolts 7 - 62 Fuel pump and sender unit locking ring 250 184 -

1 Fuel feed pipe connection 2 EVAP pipe connection 3 Manifold 4 Low Pressure (LP) sensor 5 Fuel feed pipe 6 Fuel vapor vent valve 7 Fuel pump module assembly 8 Fuel tank www.JagDocs.com

10 FPDM (fuel pump driver module) 11 Fuel filler pipe 12 Fuel filler cap and lanyard 13 Charcoal canister 14 Pipe - EVAP charcoal canister to purge valve COMPONENT LOCATION - NORTH AMERICAN SPECIFICATION (NAS)



Item Description 1 Fuel feed pipe connection 2 EVAP pipe connection 3 Manifold 4 LP sensor 5 Fuel feed pipe 6 Fuel vapor vent valve

8 Fuel tank 9 Fuel filler hose 10 FPDM 11 Anti-trickle valve 12 Fuel filler cap and lanyard 13 DMTL filter 14 Fuel filler pipe 15 Charcoal canister 16 DMTL pump 17 Pipe - EVAP charcoal canister to purge valve