Wheels/Vehicle Underbody Component Views. GMC Truck Sierra

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2008 🢒 Sierra - 2WD 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Wheels/Vehicle Underbody Component Views

Figure 1:

Front Frame and Underbody Components - 1 of 2


(1)	Wheel Speed Sensor (WSS) - Right Front (JL4/JF3/JF7/JH6/JH7)
(2)	Chassis
(3)	Wheel Speed Sensor (WSS) - Left Front (JL4/JF3/JF7/JH6/JH7)

Figure 2:

Front Frame and Underbody Components - 2 of 2


(1)	Frame
(2)	X110 (NQF/NQG/NQH/NP2)
(3)	Front Axle Housing
(4)	Front Drive Axle Actuator (NQF/NQG/NQH/NP2)

Figure 3:

Left Side Frame and Underbody Components - 1 of 2


(1)	Fuel Pump and Sender Assembly - Rear (Gas with LY6)
(2)	Fuel Pump and Sender Assembly - Front (Gas)
(3)	Fuel Pump Relay - Secondary (Gas with LY6)

Figure 4:

Left Side Frame and Underbody Components - 2 of 2


(1)	Fuel Tank Pressure (FTP) Sensor (Gas)
(2)	Fuel Tank
(3)	Evaporative Emissions (EVAP) Canister
(4)	Evaporative Emissions (EVAP) Canister Vent Solenoid Valve (Gas)
(5)	Electronic Brake Control Module (EBCM) (JL4/JF3/JF7/JH6/JH7)
(6)	Fuel Pressure Sensor (Gas except 4.3L/LMG/LY6/LC9)
(7)	Chassis
(8)	Fuel Pump and Sender Assembly - Front (Gas)

Figure 5:

Left Side Frame and Underbody Components (Diesel)


(1)	Fuel Level Sensor - Secondary (31 Series without NQZ)
(2)	Fuel Pump (31 Series without NQZ)
(3)	Fuel Level Sensor - Primary

Figure 6:

Right Side Frame and Underbody Components (Diesel)


(1)	Rear Frame Assembly
(2)	Exhaust Temperature Sensor 2
(3)	Exhaust Temperature Sensor 1
(4)	Exhaust Differential Sensor

Figure 7:

Left Rear Frame and Underbody Components - 1 of 3


(1)	X414 (UY2/8S3)
(2)	J420 (UY2)
(3)	Camper/Trailer Harness
(4)	J415 (UY2)
(5)	Chassis Harness
(6)	J416 (UY2)
(7)	J417 (UY2)
(8)	J414 (UY2)
(9)	J421 (UY2)
(10)	J410 (UY2)
(11)	Blunt Cut - Camper Trailer (UY2)
(12)	G401
(13)	Trailer Connector (except MEX/EXP)

Figure 8:

Left Rear Frame and Underbody Components - 2 of 3


(1)	Rear Frame
(2)	Fuel Pump Flow Control Module (Gas except LU3/LMG/LY6/LC9)
(3)	Trailer Connector (except MEX/EXP)

Figure 9:

Left Rear Frame and Underbody Components - 3 of 3


(1)	Rear Bumper
(2)	Junction Block - Rear Lamps
(3)	Data Link Resistor
(4)	Trailer Connector (except MEX/EXP)

Figure 10:

Left Rear Frame and Underbody Components (20/30 Series)


(1)	Trailer Connector (except MEX/EXP)
(2)	Trailer Brake Control Module (JL1)
(3)	Trailer Brake Control Relay (JL1)

Figure 11:

Right Rear Frame and Underbody Components (31 Series)


(1)	Trailer Brake Control Relay
(2)	Trailer Brake Control Module

Figure 12:

Rear Frame and Underbody Components (10 Series)


(1)	Rear Bumper
(2)	Fuel Pump Flow Control Module (except LU3/LMG/LC9)
(3)	Trailer Brake Control Relay (JL1)
(4)	Trailer Brake Control Module (JL1)

Figure 13:

Rear Frame and Underbody Components (JL4)


(1)	Wheel Speed Sensor (WSS) - Left Rear
(2)	Wheel Speed Sensor (WSS) - Right Rear