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Home >> GMC >> 2021 >> Yukon XL AT4 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls And Fuel - 5.3L (L84) Or 6.2L (L87) - Specifications >> Specifications >> Fastener Specifications

Fastener Specifications

GM5601017Courtesy of GENERAL MOTORS COMPANY
Accelerator Pedal

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Accelerator Pedal Nut [ 2x ] - - 9 N.m (80 lb/in) Accelerator Pedal Replacement
GM5604845Courtesy of GENERAL MOTORS COMPANY
Air Cleaner Assembly with Mass Airflow Sensor

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Air Cleaner Outlet Duct Bracket Bolt - - 9 N.m (80 lb/in) Air Cleaner Outlet Duct Replacement
2 Air Cleaner Outlet Duct Clamp [ 2x ] - - 4 N.m (35 lb/in) Air Cleaner Outlet Duct Replacement
3 Air Cleaner Housing Cover Bolt [ 3x ] - - 9 N.m (80 lb/in) Air Cleaner Assembly Replacement
4 Mass Airflow Sensor Bolt [ 2x ] - - 2.5 N.m (22 lb/in) Mass Airflow Sensor Replacement
5 Air Cleaner Nut - - 9 N.m (80 lb/in) Air Cleaner Assembly Replacement
GM5605272Courtesy of GENERAL MOTORS COMPANY
Camshaft Position Actuator Magnet and Camshaft Position Sensor

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Camshaft Position Actuator Magnet Bolt [ 3x ] - - 10 N.m (89 lb/in) Camshaft Position Actuator Magnet Replacement
2 Camshaft Position Actuator Magnet Gasket Yes - - Camshaft Position Actuator Magnet Replacement
3 Camshaft Position Sensor Bracket Bolt [ 2x ] - - 10 N.m (89 lb/in) Camshaft Position Sensor Replacement
4 Camshaft Position Sensor Seal Yes - - Camshaft Position Sensor Replacement
GM5605410Courtesy of GENERAL MOTORS COMPANY
Crankshaft Position Sensor

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Crankshaft Position Sensor Bolt - - 25 N.m (18 lb-ft) Crankshaft Position Sensor Replacement
GM5605569Courtesy of GENERAL MOTORS COMPANY
Engine Control Module Bracket

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Engine Control Module Bracket Bolt [ 3x ] - - 9 N.m (80 lb/in) Engine Control Module Bracket Replacement
GM5607581Courtesy of GENERAL MOTORS COMPANY
Engine Oil Pressure and Temperature Sensor and Knock Sensor 1

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Knock Sensor Shield Bolt - - 25 N.m (18 lb-ft) Knock Sensor 1 Replacement (2WD) , or
Knock Sensor 1 Replacement (4WD) .
2 Knock Sensor Bolt - - 25 N.m (18 lb-ft) Knock Sensor 1 Replacement (2WD) , or
Knock Sensor 1 Replacement (4WD) .
3 Engine Oil Pressure and Temperature Sensor - - 35 N.m (26 lb-ft) Engine Oil Pressure and Temperature Sensor Replacement
GM5619600Courtesy of GENERAL MOTORS COMPANY
Fuel Feed Pipe - Engine

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Fuel Feed Pipe Bolt - - 10 N.m (89 lb/in) Fuel Feed Pipe Replacement - Engine (L84) , or
Fuel Feed Pipe Replacement - Engine (L87) .
GM5619599Courtesy of GENERAL MOTORS COMPANY
Fuel Feed and Return Front Pipe

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Fuel Feed and Evaporative Emission and Return Pipe Clip Bracket Bolt - - 22 N.m (16 lb-ft) Fuel Feed Pipe Replacement - Underbody (Short Wheelbase) , or
Fuel Feed Pipe Replacement - Underbody (Long Wheelbase) .
GM5607947Courtesy of GENERAL MOTORS COMPANY
Fuel Rail and Fuel Injector Components

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Fuel Injection Fuel Rail Bolt [ 8x ] - - 25 N.m (18 lb-ft) Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (L84) , or
Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (L87) .
2 Fuel Feed Intermediate Pipe Nut [ 2x ] - - 30 N.m (22 lb-ft) Fuel Feed Intermediate Pipe Replacement - Position 1 (L84) , or
Fuel Feed Intermediate Pipe Replacement - Position 1 (L87) .
3 Fuel Feed Pipe Bolt - - 10 N.m (89 lb/in) Fuel Feed Intermediate Pipe Replacement - Position 2 (L84) , or
Fuel Feed Intermediate Pipe Replacement - Position 2 (L87) .
4 Fuel Feed Intermediate Pipe Nut [ 2x ] - - 30 N.m (22 lb-ft) Fuel Feed Intermediate Pipe Replacement - Position 2 (L84) , or
Fuel Feed Intermediate Pipe Replacement - Position 2 (L87) .
5 Fuel Feed Intermediate Pipe Yes - - Fuel Feed Intermediate Pipe Replacement - Position 2 (L84) , or
Fuel Feed Intermediate Pipe Replacement - Position 2 (L87) .
6 Fuel Feed Intermediate Pipe Yes - - Fuel Feed Intermediate Pipe Replacement - Position 1 (L84) , or
Fuel Feed Intermediate Pipe Replacement - Position 1 (L87) .
7 Fuel Pump Bolt [ 2x ] - - 25 N.m (18 lb-ft) Fuel Pump Replacement (L84) , or Fuel Pump Replacement (L87)
8 Fuel Pump Bracket Gasket Yes - - Fuel Pump Replacement (L84) , or Fuel Pump Replacement (L87)
9 Fuel Injection Fuel Rail Fuel Pressure Sensor - - 32.5 N.m (24 lb-ft) Fuel Rail Pressure Sensor Replacement (L84) , or
Fuel Rail Pressure Sensor Replacement (L87) .
10 Fuel Injector Retainer [ 8x ] Yes - - Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (L84) , or
Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (L87) .
11 Fuel Injection Fuel Rail Seal [ 8x ] Yes - - Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (L84) , or
Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (L87) .
12 Direct Fuel Injector Hold Down Clamp [ 4x ] Yes - - Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (L84) , or
Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (L87) .
13 Fuel Injector Nozzle Housing Seal [ 16x ] Yes - - Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (L84) , or
Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (L87) .
14 Fuel Injector Seal [ 8x ] Yes - - Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (L84) , or
Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (L87) .
GM5606270Courtesy of GENERAL MOTORS COMPANY
Fuel Tank and Evaporative Emission Canister Components

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Fuel Tank Filler Hose Clamp [ 2x ] - - 3.5 N.m (31 lb/in) Fuel Tank Filler Hose Replacement
2 Fuel Sender Seal Yes - - Fuel Tank Fuel Pump Module Replacement (Short Wheelbase) , or
Fuel Tank Fuel Pump Module Replacement (Long Wheelbase) .
3 Fuel Pump Power Control Module Nut [ 2x ] - - 9 N.m (80 lb/in) Fuel Pump Power Control Module Replacement
4 Fuel Pump Power Control Module Bracket Nut [ 2x ] - - 9 N.m (80 lb/in) Fuel Pump Power Control Module Replacement
5 Evaporative Emission Canister Bracket Bolt - Yes 15 N.m (11 lb-ft) Evaporative Emission Canister Bracket Replacement (Short Wheelbase) , or
Evaporative Emission Canister Bracket Replacement (Long Wheelbase) .
6 Evaporative Emission Canister Nut [ 2x ] - - 9 N.m (80 lb/in) Evaporative Emission Canister Replacement (Short Wheelbase) , or
Evaporative Emission Canister Replacement (Long Wheelbase) .
7 Evaporative Emission Canister Bracket Bolt [ 2x ] - - 22 N.m (16 lb-ft) Evaporative Emission Canister Replacement (Short Wheelbase) , or
Evaporative Emission Canister Replacement (Long Wheelbase) .
8 Fuel Tank Strap Bolt [ 2x ] - - 22 N.m (16 lb-ft) Fuel Tank Replacement (Short Wheelbase) , or
Fuel Tank Replacement (Long Wheelbase) .
GM5619599Courtesy of GENERAL MOTORS COMPANY
Fuel Feed and Return Front Pipe

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Fuel Feed and Evaporative Emission and Return Pipe Clip Bracket Bolt - - 22 N.m (16 lb-ft) Fuel Feed Pipe Replacement - Underbody (Short Wheelbase) , or
Fuel Feed Pipe Replacement - Underbody (Long Wheelbase) .
GM5604946Courtesy of GENERAL MOTORS COMPANY
Fuel Tank Filler Pipe

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Fuel Tank Filler Pipe Bracket Bolt - - 22 N.m (16 lb-ft) Fuel Tank Filler Pipe Replacement
GM5600744Courtesy of GENERAL MOTORS COMPANY
Fuel Tank Filler Pipe Bracket

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Fuel Tank Filler Pipe Bracket Bolt - - 22 N.m (16 lb-ft) Fuel Tank Filler Pipe Replacement
2 Tie Strap Yes - - Fuel Tank Filler Pipe Replacement
GM5608250Courtesy of GENERAL MOTORS COMPANY
Fuel Feed and Return Pipe Clip Bracket

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Fuel Feed and Return Front Hose Bracket Nut - - 22 N.m (16 lb-ft) Fuel Feed and Return Front Hose Bracket Replacement
GM5837759Courtesy of GENERAL MOTORS COMPANY
Fuel Feed and Return Front Hose Bracket

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Fuel Feed and Return Front Hose Bracket Bolt - - 9 N.m (7 lb-ft) Fuel Feed and Return Front Hose Bracket Replacement
GM5537634Courtesy of GENERAL MOTORS COMPANY
Fuel Tank Filler Pipe Housing

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Fuel Tank Filler Pipe Housing Bolt [ 3x ] - - 12 N.m (106 lb/in) Fuel Tank Filler Pipe Replacement
GM5605775Courtesy of GENERAL MOTORS COMPANY
Heated Oxygen Sensor - Bank 2 Sensor 1

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Heated Oxygen Sensor - - 42 N.m (31 lb-ft) Heated Oxygen Sensor Replacement - Bank 2 Sensor 1
GM5607820Courtesy of GENERAL MOTORS COMPANY
Heated Oxygen Sensors and Knock Sensor 2

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Heated Oxygen Sensor - - 42 N.m (31 lb-ft) Heated Oxygen Sensor Replacement - Bank 1 Sensor 1
2 Heated Oxygen Sensor - - 42 N.m (31 lb-ft) Heated Oxygen Sensor Replacement - Bank 1 Sensor 2
3 Heated Oxygen Sensor - - 42 N.m (31 lb-ft) Heated Oxygen Sensor Replacement - Bank 2 Sensor 2
4 Knock Sensor Bolt - - 25 N.m (18 lb-ft) Knock Sensor 2 Replacement
GM5605769Courtesy of GENERAL MOTORS COMPANY
Manifold Absolute Pressure Sensor and Engine Coolant Temperature Sensor

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Manifold Absolute Pressure Sensor Bolt - - 4.5 N.m (40 lb/in) Manifold Absolute Pressure Sensor Replacement
2 Evaporative Emission Canister Purge Solenoid Valve Bolt - - 10 N.m (89 lb/in) Evaporative Emission Canister Purge Solenoid Valve Replacement
3 Engine Coolant Temperature Sensor - - 30 N.m (22 lb-ft) Engine Coolant Temperature Sensor Replacement
GM5608058Courtesy of GENERAL MOTORS COMPANY
Throttle Body and Ignition Coils

Callout Component Name [ Component Quantity ] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Ignition Coil Bolt [ 16x ] - - 15 N.m (11 lb-ft) Ignition Coil Replacement - Right Side
Ignition Coil Replacement - Left Side
2 Gas Engine Ignition Spark Plug
[ 8x ]
- - 20 N.m (15 lb-ft) Gas Engine Ignition Spark Plug Replacement - Right Side
Gas Engine Ignition Spark Plug Replacement - Left Side
3 Throttle Body Seal Yes - - Throttle Body Assembly Replacement
4 Throttle Body Bolt [ 4x ] - - 10 N.m (89 lb/in) Throttle Body Assembly Replacement