Dodge 2000 DURANGO Service Manual page 764

14 - 44 FUEL SYSTEM
DIAGNOSIS AND TESTING (Continued)
(5) Disconnect the idle purge vacuum line from fit-
ting at throttle body. This vacuum line is located on
the front of throttle body next to the MAP sensor
(Fig. 16). Cap the fitting at throttle body after vac-
uum line has been removed.
Fig. 16 Idle Purge Line
1 – THROTTLE BODY
2 – PURGE VACUUM LINE
(6) Connect the DRB scan tool to the 16–way data
link connector. This connector is located under the
instrument panel to the left of the steering column.
Refer to the appropriate Powertrain Diagnostic Pro-
cedures service manual for DRB operation.
(7) Start the engine and allow to warm up.
(8) Using the DRB scan tool, scroll through the
menus as follows: select—Stand Alone DRB III, select
the year 2000 Diagnostics, select—Engine, select—
System Test, select—Minimum Air Flow.
(9) The DRB scan tool will count down to stabilize
the idle rpm and display the minimum air flow idle
rpm. The idle rpm should be between 500 and 900
rpm. If the idle speed is outside of these specifica-
tions, replace the throttle body. Refer to Throttle
Body in the Component Removal/Installation section
of this group.
(10) Disconnect the DRB scan tool from the vehi-
cle.
(11) Remove cap from idle purge fitting at throttle
body and install vacuum line.
(12) Remove orifice tool and connect vacuum line
to PCV valve.
(13) Install air duct to throttle body.
REMOVAL AND INSTALLATION
AUTOMATIC SHUTDOWN (ASD) RELAY
The ASD relay is located in the Power Distribution
Center (PDC) (Fig. 17). Refer to label on PDC cover
for relay location.
Fig. 17 Power Distribution Center (PDC) Location
1 – POWER DISTRIBUTION CENTER (PDC)
REMOVAL
(1) Remove PDC cover.
(2) Remove relay from PDC.
(3) Check condition of relay terminals and PDC
connector terminals for damage or corrosion. Repair
if necessary before installing relay.
(4) Check for pin height (pin height should be the
same for all terminals within the PDC connector).
Repair if necessary before installing relay.
INSTALLATION
(1) Install relay to PDC.
(2) Install cover to PDC.
FUEL PUMP RELAY
The fuel pump relay is located in the Power Distri-
bution Center (PDC) (Fig. 17). Refer to label on PDC
cover for relay location.
REMOVAL
(1) Remove PDC cover.
(2) Remove relay from PDC.
(3) Check condition of relay terminals and PDC
connector terminals for damage or corrosion. Repair
if necessary before installing relay.
(4) Check for pin height (pin height should be the
same for all terminals within the PDC connector).
Repair if necessary before installing relay.
DN