
TEST
ACTION
APPLICABILITY
6
Turn the ignition off.
Connect a Vacuum Gauge to a Manifold Vacuum source.
Start the engine.
Allow the engine to idle.
Note: If engine will not idle, maintain a constant RPM above idle.
With the DRBIII
t
in Sensors, read the MAP Sensor vacuum value.
Is the DRBIII
t
reading within 1
9
of the Vacuum Gauge reading?
All
Yes
→
No
→
Replace the MAP Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
7
Note: For this test to be valid, the thermostat must be operating correctly.
Note: This test works best if performed on a cold engine (cold soak)
Ignition on, engine not running.
With the DRBIII
t
, read the Engine Coolant Temperature (ECT) Sensor value. If the
engine was allowed to sit overnight (cold soak), the temperature value should be a
sensible value that is somewhere close to the ambient temperature.
Note: If engine coolant temperature is above 82°C (180°F), allow the engine
to cool until 65°C (150°F) is reached.
Start the Engine.
During engine warm-up, monitor the ECT Sensor value. The temperature value
change should be a smooth transition from start up to normal operating temperature
82°C (180°F). The value should reach at least 82°C (180°F).
Did the ECT value increase with a smooth transition and did it reach at least 82°C?
All
Yes
→
No
→
Replace the Engine Coolant Temperature Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
8
Check for any of the following conditions/mechanical problems.
AIR INDUCTION SYSTEM - must be free from leaks.
ENGINE VACUUM - must be at least 13 inches in neutral
ENGINE VALVE TIMING - must be within specifications
ENGINE COMPRESSION - must be within specifications
ENGINE EXHAUST SYSTEM - must be free of any restrictions or leaks.
ENGINE PCV SYSTEM - must flow freely
TORQUE CONVERTER STALL SPEED - must be within specifications
POWER BRAKE BOOSTER - no internal vacuum leaks
FUEL - must be free of contamination
FUEL INJECTOR - plugged or restricted injector; control wire not connected to
correct injector
Are there any engine mechanical problems?
All
Yes
→
Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
No
→
Test Complete.
102
DRIVEABILITY - NGC
P0171-FUEL SYSTEM 1/1 LEAN —
Continued
Содержание Pacifica CS 2004
Страница 14: ...FIGURE 2 8 GENERAL INFORMATION ...
Страница 22: ...NOTES 16 ...
Страница 23: ...7 0 DIAGNOSTIC INFORMATION AND PROCEDURES 17 ...
Страница 340: ...TYPICAL VIEW C O M P O N E N T L O C A T I O N S 334 COMPONENT LOCATIONS 8 2 CONTROL AND SOLENOIDS Continued ...
Страница 341: ...8 3 SENSOR C O M P O N E N T L O C A T I O N S 335 COMPONENT LOCATIONS ...
Страница 342: ...8 4 FUEL SYSTEM AND EVAP SYSTEM 8 5 SWITCHES C O M P O N E N T L O C A T I O N S 336 COMPONENT LOCATIONS ...
Страница 350: ...C O N N E C T O R P I N O U T S 344 CONNECTOR PINOUTS ...
Страница 364: ...NOTES 358 ...
Страница 365: ...10 0 SCHEMATIC DIAGRAMS 10 1 2004 CS 3 5L S C H E M A T I C D I A G R A M S 359 SCHEMATIC DIAGRAMS ...
Страница 366: ...10 2 2004 CS 3 5L S C H E M A T I C D I A G R A M S 360 SCHEMATIC DIAGRAMS ...
Страница 367: ...10 3 2004 CS 3 5L S C H E M A T I C D I A G R A M S 361 SCHEMATIC DIAGRAMS ...
Страница 368: ...NOTES 362 ...
Страница 369: ...11 0 CHARTS AND GRAPHS C H A R T S A N D G R A P H S 363 CHARTS AND GRAPHS ...
Страница 370: ...C H A R T S A N D G R A P H S 364 CHARTS AND GRAPHS ...