Section 07
ENGINE MANAGEMENT (4-TEC)
Subsection 03
(COMPONENT INSPECTION AND ADJUSTMENT)
07-03-8
SMR2002-078 _07_03A.FM
FUEL DELIVERY
4-TEC
FUEL DELIVERY SYSTEM DIAGNOSTIC FLOW CHART
Repair or
replace
Replace fuel
pump module
FUEL SYSTEM OK
Retest
Replace fuel
pump module
R1503motr209S
Connect safety lanyard
Fuel pump does not run
Fuel pump runs
for 2 sec. then stops
Install fuel pressure gauge
on fuel pressure line
Check fuses
Check safety lanyard connection
Check fuel pump operation
Repair or replace if necessary
Fuel pressure is
303 kPa (44 PSI)
Fuel pressure more
than 303 kPa (44 PSI)
Fuel pressure less
than 303 kPa (44 PSI)
Perform fuel pump test
Check fuel line /
rail for leaks
Crank or start
engine
Fuel pressure less
than 303 kPa (44 PSI)
Fuel pressure more
than 303 kPa (44 PSI)
Check fuel
injector
Fails
Connect safety lanyard
Fuel pump runs
Fuel pressure is
303 kPa (44 PSI)
OK
OK
Yes
No
Check
fuel line /
rail for leaks
Repair or
replace
OK
Fails
Perform fuel
pump test
OK
Fast
pressure drop
Verify fuel
pump check
valve
OK
Fails
Fails
OK
Fails
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Summary of Contents for GTX 4-TEC 5573 2002
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