Suzuki GRAND VITARA 2005 Service Manual page 134

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1A-102 Engine General Information and Diagnosis:
Table 8: Fuel System Leaks
WARNING
!
When servicing fuel system, be sure to observe WARNING in "Precautions on Fuel System Service: in
Section 1G" to reduce the risk of fire and personal injury.
Procedure for checking for an external leak on the fuel circuit:
Clean away traces of grease with clean thinner and wipe the part or the parts concerned with cleaning cloths. Start the
engine and raise the engine coolant temperature until the diesel fuel reaches 80 °C, 176 °F. Stop the engine and check
for traces of grease on the part or parts concerned. If there are such signs, replace the part or parts concerned. Bleed
the fuel circuit and continue the checks.
Troubleshooting
Step
1
Are there greasy marks on the priming pump? (Visual
inspection and touch check)
2
Does the diesel filter offer up traces of grease? (Visual and
tactile inspections)
3
Are there greasy marks on the return pipes?
4
Does the high pressure pump show traces of grease?
(Visual and tactile inspections)
5
Do the high pressure pipes and the injector rail show traces
of grease? (Visual and tactile inspections)
6
Do the injectors show traces of grease? (Visual and tactile
inspections)
Action
Yes
Check the assembly of
the elements and the
condition of the seal at
the union of the two
components, if the leak
is at the seal. Replace
the part or the parts
concerned. Bleed the
fuel circuit and continue
the checks.
Check the assembly of
the elements and the
condition of the seal at
the union of the two
components, if the leak
is at the seal. Replace
the part or the parts
concerned. Bleed the
fuel circuit and continue
the checks.
Check the assembly of
the elements and the
condition of the seal at
the union of the two
components, if the leak
is at the seal. Replace
the part or the parts
concerned. Bleed the
fuel circuit and continue
the checks.
Go to Step 7.
Go to Step 7.
Go to Step 7.
S5JB0B1104161
No
Go to Step 2.
Go to Step 3.
Go to Step 4.
Go to Step 5.
Go to Step 6.
End of fault finding.
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