Wheels/Vehicle Underbody Component Views

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Front Frame and Underbody Components - 1 of 2

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
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)

Fig 2: Front Frame and Underbody Components - 2 of 2

Courtesy of GENERAL MOTORS CORP.

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

Fig 3: Left Side Frame and Underbody Components - 1 of 2

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Fuel Pump and Sender Assembly - Rear (Gas +LY6)
2	Fuel Pump and Sender Assembly - Front (Gas)
3	Fuel Pump (FP) Relay - Secondary (Gas +LY6)

Fig 4: Left Side Frame and Underbody Components - 2 of 2

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
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 Line Pressure Sensor (Gas -4.3L/LMG/LY6/LC9)
7	Chassis
8	Fuel Pump and Sender Assembly - Front (Gas)

Fig 5: Left Side Frame and Underbody Components (Diesel)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Fuel Level Sensor - Secondary (-NQZ)
2	Fuel Pump
3	Fuel Level Sensor - Primary

Fig 6: Right Side Frame and Underbody Components (Diesel)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Rear Frame Assembly
2	Exhaust Gas Temperature (EGT) Sensor 2
3	Exhaust Gas Temperature (EGT) Sensor 1
4	DPF Differential Pressure Sensor

Fig 7: Left Rear Frame and Underbody Components - 1 of 3

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
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	Camper Trailer Blunt Cuts (UY2)
12	G401
13	Trailer Connector (UY7)

Fig 8: Left Rear Frame and Underbody Components - 2 of 3

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Rear Frame
2	Fuel System Control Module (Gas -4.3L/LMG/LY6/LC9)
3	Trailer Connector (UY7)

Fig 9: Left Rear Frame and Underbody Components - 3 of 3

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Rear Bumper
2	Junction Block - Rear Lamps
3	Terminator Resistor
4	Trailer Connector (UY7)

Fig 10: Left Rear Frame and Underbody Components (20/30 Series)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Trailer Connector (UY7)
2	Trailer Brake Controller Module (TBCM) (JL1)
3	Trailer Brake Controller Solid State Relay (JL1)

Fig 11: Right Rear Frame and Underbody Components (31 Series)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Trailer Brake Controller Solid State Relay
2	Trailer Brake Controller Module (TBCM)

Fig 12: Rear Frame and Underbody Components (JL4)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Wheel Speed Sensor (WSS) - Left Rear (JL4)
2	Wheel Speed Sensor (WSS) - Right Rear (JL4)