Working On Fuel System
WARNING: This page is about a different variant/trim than selected.
Note the following when working on the fuel system:
WARNING:
There is a risk of injury because the fuel is under pressure.
- Place rags around the connection before opening the system. Then release pressure by carefully loosening the connection.
Very hot fuel can burn your skin.
- For safety reasons, if the battery is >>not<< disconnected, the Fuel Pump Control Module -J538- fuse must be removed before opening fuel system. Otherwise, the fuel pump will be activated by the driver door contact switch.
- The temperature of the fuel lines or fuel may reach 100 °C (212 °F) after stopping the engine. Let the fuel cool down before opening any line connections otherwise there is a danger of scalding.
- Wear safety gloves
- Wear protective eyewear.
To prevent personal injury and damage to the injection and pre-glow system, observe the following:
- The ignition must be switched off before connecting or disconnecting injection and preglow system wiring or tester cables.
- Wash the engine only when the ignition is turned off.
- If the connectors were disconnected and the engine was started, then malfunctions have been stored in the Diagnostic Trouble Code (DTC) memory/Engine Control Module (ECM): Check DTC Memory in Guided Functions , refer to Vehicle Diagnostic Tester.
CAUTION:
Risk of damaging electronic components when disconnecting the battery.
- Complete the steps for disconnecting the battery.
- Always turn off the ignition before disconnecting the battery.
Disconnect the battery, refer to BATTERY, DISCONNECTING AND CONNECTING .