Ford 2007 WQ Fiesta Repair Manual page 426

303-004 Engine System
-
General Information 303-00-4
DIAGNOSIS AND TESTING
Engine
Special Tool(s)
Socket, Spark Plug
303-499
I
Adhesive
-
Loctite 243
I
WSK-M2G349A7
I
Materials
1. Verify the customer concern by operating the
system.
2. Visually inspect for obvious signs of mechanical
or electrical damage.
k.
Name S~ecification
Leaks from oil carrying
components or basic engine.
E47332
&
21211
CHECK for cracks in oil
carrying components of the
basic engine by means of a
leak test. INSTALL new
components or seals as
necessary.
2006.0 Fiesta
1212006 GI 52554en
Compression Test Adapter
303-1 052
Pliers, Valve Stem Seal
303-508
4. If the cause is not visually evident, verify the
symptom and refer to the Symptom Chart.
Symptom Chart
Symptom Possible Sources Action
Visual Inspection Chart
Loss of oil
Mechanical
-
Coolant leaks
-
Oil leaks
-
Fuel system leaks
-
Visibly damaged or
worn parts
-
Loose or missing
nuts or bolts
Electrical
-
Fuse(s)
-
Loose or corroded
connector(s)
-
Powertrain control
module
-
Damaged or worn
switch(es)
Oil leaks on components that
are eithei coated in oil them-
selves or on components local
to them.
Internal or external leak at the
oil cooler.
Leak at the crankshaft seal.
3. If an obvious cause for an observed or reported
concern is found, correct the cause (if possible)
before proceeding to the next step.
CHECK for evidence of oil
leaks on components. Use an
ultraviolet (UV) leak tester if an
oil leak is not evident, INSTALL
new gaskets or components as
required.
CHECK the coolant expansion
tank for a film of oil on the
coolant surface. INSTALL a
new oil cooler or oil cooler
gasket.
INSTALL a new crankshaft
seal.