K 1500 Yukon 4WD V8-5.3L VIN Z Flex Fuel (2003)
1. If required, install the fuel composition sensor to the bracket and install the bolts.
NOTE: Refer to Fastener Notice in Service Precautions See: Service Precautions/Vehicle Damage Warnings/Fastener Notice.
Tighten
Tighten bolts to 10 N.m (89 lb in).
2. Install the fuel composition sensor.
3. Install the fuel composition sensor bracket nuts.
Tighten
Tighten nuts to 17 N.m (13 lb ft).
4. Connect the fuel composition sensor electrical connector (4).
5. Connect the fuel composition sensor fuel pipes.
6. Install the fuel line retainers.
