Jaguar XJ (X350). Manual - part 621
Engine cranks and fires,
but will not start
•
Purge valve
•
Fuel pump
•
Engine coolant
temperature (ECT)
sensor
•
Spark plugs
•
HT short to ground
(tracking) check rubber
boots for
cracks/damage
•
Ignition coil failure(s)
•
Harness
For evaporative emissions components,
<<303-13>> Check fuel pressure, <<310-
01>> For ECT sensor tests, <<303-14>> For
ignition system <<303-07>>
Difficult to start cold
•
Check coolant anti-
freeze content
•
Battery
•
CKP sensor
•
EGR valve stuck open
•
Fuel pump
•
Engine coolant
temperature (ECT)
sensor
•
Purge valve
Check engine coolant level and condition.
For battery information, <<414-01>> For
CKP sensor tests, <<303-14>> For EGR
system information, <<303-08>> Check fuel
pressure. <<310-01>> For ECT sensor tests,
<<303-14>> For evaporative emissions
components, <<303-13>>
Difficult to start hot
•
Injector leak
•
Fuel temperature
sensor
•
IAT sensor
•
MAF sensor
•
Purge valve
•
Fuel pump
•
Ignition system
•
Engine coolant
temperature (ECT)
sensor
•
EGR valve stuck open
For fuel injector information,
Fuel Injectors (18.10.02) For fuel
temperature sensor, IAT sensor and MAF
sensor tests, <<303-14>> For evaporative
emissions components, <<303-13>> Check
fuel pressure. <<310-01>> For ignition
system, <<303-07>> For ECT sensor tests,
<<303-14>> For EGR information, <<303-
08>>
Difficult to start after
hot soak (vehicle
standing after engine
has reached operating
temperature)
•
Injector leak
•
Fuel temperature
sensor
•
IAT sensor
•
MAF sensor
•
Purge valve
•
Fuel pump
•
Ignition system
•
Engine coolant
temperature (ECT)
sensor
•
EGR valve stuck open
For fuel injector information,
For fuel temperature sensor, IAT sensor
and MAF sensor tests, <<303-14>> For
evaporative emissions components, <<303-
13>> Check fuel pressure. <<310-01>> For
ignition system, <<303-07>> For ECT sensor
tests, <<303-14>> For EGR information,
<<303-08>>