Ford Transit 2002 Owner's Manual page 1102

Engine Emission Control - 1.8L Duratorq-
TDCi (Lynx) Diesel/1.8L Duratorq-TDDi
(Lynx) Diesel - Engine Emission Control—
75 PS/90 PS
Diagnosis and Testing
Special Tool(s)
Hand Vacuum/Pressure Pump
416-D001 (23-036A)
Inspection and Verification
1. 1. Verify the customer concern.
2. 2. Visually inspect for obvious signs of mechanical damage.
Visual Inspection Chart
3. 3. If an obvious cause for an observed or reported concern is found, correct the cause
(if possible) before proceeding to the next step.
4. 4. If the cause is not visually evident, verify the symptom and refer to the Symptom
Chart.
Symptom Chart
Symptom Chart
Symptom
Excessive exhaust * EGR valve.
black smoke * EGR vacuum
regulator valve.
Excessive * Blocked or damaged
crankcase PCV hose(s).
pressure * Blocked crankcase
vent oil separator.
* Worn or damaged
engine components.
Pinpoint Tests
PINPOINT TEST A : EXCESSIVE EXHAUST BLACK SMOKE
TEST CONDITIONS
A1: CHECK VACUUM TO THE EGR VALVE
Mechanical
Exhaust gas recirculation (EGR) valve
EGR tube
EGR tube clamps
Gaskets/seals
Positive crankcase ventilation (PCV) hoses
Crankcase vent oil separator
EGR vacuum regulator valve
Possible Sources
*
*
*
Disconnect the vacuum line from the EGR valve.
1
http://vnx.su
Transit/Tourneo Connect 2002.5 (06/2002-)
Action
GO to Pinpoint Test A.
CHECK the PCV system components for
blockages, CLEAN or INSTALL new components
as necessary.
REFER to Section 303-01A Engine
Engine.
DETAILS/RESULTS/ACTIONS
Print
.
/ 303-01B