LandRover EPQR - View SSM
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Models: LD - Defender
Title: SSM 37380 - 07MY Defender Non Start, Rough
Running, P0089-7A & or P1169-00
Engineer Darlison Mark
Name:
Last its '2008-04-18 OO:OO:OO'}
Modified:
Category: Driveability
Symptom: 603300 No Start
Content: Issue:
Non start, poor idle, rough running, P0089-7A and or
P1169-00 logged.
Cause:
Potential water in fuel tank. A small number of service
replacement parts have been returned to engineering
for inspection and in each case the breather / vent line
has been blocked with water / mud / dirt. A blocked
breather / vent line would cause the fuel tank to vent
via the fuel cap. Engineering testing has
highlighted evidence to suggest water is collecting
inside the fuel cap, (via the fuel cap lock barrel), and is
then drawn into the fuel tank during the breather /
venting process.
ActiQn~
This will depend on the severity of the contamination,
the quality of the engine running / performance and
whether or not any DTC are logged and what they
relate to.
Please follow the steps in the attached pdf doc to
determine which course of action to take.
NOTE)
Any vehicle presented to the dealership with DTC
P0089 and P1169 must have the fuel pump and rail
replaced.
DTC other than P0089 and P1169 are not so important
in contamination cases and do not necessarily mean
that parts should be replaced. Please follow normal
diagnosis procedures for other logged DTC. Please
submit an ePQR for reference.
New fuel tank with updated breather location
introduced for Defender 90 at Vin 760582. Defender
110 /130 at Vin 760304. See attached pdf.
Files: Breather Location.QQf
Water in Fuel SSM.pgf
j\te\lllJank & breather 10Qiltion.pdf
Issue:
Non start, poor idle, rough running, POOa9-?A and or P1169-00 logged.
Cause:
Potential for water in fuel tank. A small number of service replacement parts have been returned
to engineering for inspection and in each case the breather I vent line has been blocked with
water I mud I dirt. A blocked breather I vent line would cause the fuel tank to vent via the fuel cap.
Engineering testing has highlighted evidence to suggest water is collecting inside the fuel cap,
(via the fuel cap lock barrel), and is then drawn into the fuel tank during the breather I venting
process.
Action:
This will depend on the severity of the contamination, the quality of the engine running I
performance and whether or not any DTG are logged and what they relate to.
Please follow the steps below to determine which course of action to take.
If DTC P0089 and or P1169 are logged at the start of the diagnosis actions 1, 2 and
3 below will require completing.
1) Non start I poor idle I running symptoms and no codes logged. At the fuel filter place a
transparent plastic cup under the drain screw and drain a quantity of the contents into the cup,
allow to settle. Look for the presence of water in the sample?
If water is evident remove the contamination, i.e. clean out the fuel tank and low pressure pipes,
replace the fuel filter and refill the system with clean fuel. Renew the fuel tank breather I vent line
and clear any blockages. Reposition the breather I vent line behind the LH rear inner wheel arch
trim panel to protect from water I mud ingress. On Pick Up variants reposition the pipe in board
towards the rear of the fuel tank. Bleed I prime the fuel system, clear fault codes and start the
engine.
If the engine then runs OK and no DTG are flagged It is likely that no further action is necessary.
2) Should the engine still run pooriy after action 1 above, it is likely that the SGV (Suction Control
Valve) on the high pressure pump is contaminated. If this is the case the only action is to replace
the high pressure pump assembly as the valve cannot be cleaned. It is a high precision
component and is not currently available as a separate part.
(Note, the SCV meters the fuel quantity and regUlates the rail pressure. Contamination to the
SCVcauses the valve to stick and therefore cannot correctly regulate the fuel rail pressure).
3) Should DTG POOa9-?A and or P1169-00 be flagged at the start or after actions 1 and 2, this
means the PLY (pressure limiting valve) on the rail has opened due to excessive rail pressure.
This again will have been caused by a contaminated SGV. In these cases both the pump and the
fuel rail must be repiaced (PLV not available separately). (Note the PLV must be replaced if it has
opened as the internal valve seat will be damaged and the return spring will be weakened).
NOTE)
DTG other than Pooa9 and P1169 are not so important in contamination cases and do not
necessarily mean that parts should be replaced. Please follow normal diagnosis procedures for
other logged DTG.
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