K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
Evaporative Emissions System: Technical Service Bulletins
EVAP System - Service of Connectors
File In Section: 06 - Engine/Propulsion System
Bulletin No.: 00-06-04-021
Date: May, 2000
INFORMATION
Subject:
Proper Service of Quick Connect EVAP System Connectors
Models:
1985-2001 Passenger Cars and Trucks
The EVAP system must be serviced properly. Improper service of the EVAP system can cause EVAP system leaks and set an engine DTC.
Important:
DO NOT cut or kink EVAP hoses/pipes to service the EVAP system. A damaged, cut or kinked EVAP system hose/pipe must be replaced and NOT
REPAIRED.
To properly service the EVAP system, it is important to correctly identify the style of quick connect EVAP fitting used in the EVAP system. Correctly
identifying the style of fitting will aid in the proper disconnection/connection of the fitting and the ability to reuse the fitting.
Improper disconnection and/or connection of EVAP fittings can cause the following conditions and set engine DTCs:
^
Leaks in the EVAP system
^
Damage to the EVAP fitting(s)
^
Damage to and/or adversely effect the function of the EVAP components such as:
-
Purge solenoid
-
Canister
-
Vapor lines
1.
To properly disconnect this style of fitting, slide the tab in and pull the fittings apart.
2.
To reconnect this style of fitting, install the fittings back together and gently pull back on the fittings to verify proper connection of the fittings.
