K 1500 Suburban 4WD V8-5.3L VIN Z Flex Fuel (2003)
IMPORTANT:When disconnecting the Multec(r) 2 fuel injector connectors, DO NOT use pliers or other hand tools, as the connector ends may become
mangled and be rendered unusable.
11.1. Mark the connectors to their corresponding injectors to ensure correct reassembly.
11.2. Pull the connector position assurance (CPA) retainer (2) on the connector up 1 click.
11.3. Push the tab (1) on the connector in.
11.4. Disconnect the fuel injector connector electrical connector.
11.5. Repeat the steps for each injector connector.
12. Remove the positive crankcase ventilation (PCV) hose.
13. Disconnect the fuel feed and return pipes (1, 2) from the fuel rail.
14. Disconnect the fuel pressure regulator vacuum line.
