2015-2020 GMC Yukon Coolant Flush Torque Specs

5.3L V8

Applies to 2015, 2016, 2017, 2018, 2019, and 2020 GMC Yukon

Labor Time:1.2 hours

Torque Values (16 specifications)

Component	Nm	lb-ft	Notes
Bleed Screw	7	5	Open during fill
Bleed Screw	7	5	Open during fill
Coolant Hose Clamps	4	3	—
Coolant Hose Clamps	4	3	—
Drain Petcock	7	5	Hand tight
Drain Petcock	5	4	—
Drain Petcock	5	4	—
Drain Petcock	7	5	Hand tight
Drain Plug	15	11	—
Drain Plug	15	11	—
Hose Clamps	5	4	—
Hose Clamps	5	4	—
⚠️ Housing Bolts	17	13	—
Housing Bolts	17	13	—
⚠️ Pump Bolts	31	23	—
Pump Bolts	31	23	—

The primary torque specification for coolant flush on a 2015-2020 GMC Yukon is 7 Nm (5 lb-ft). Note: Open during fill

There are 16 torque specifications for coolant flush on the 2015-2020 GMC Yukon 5.3L V8, covering all related fasteners and components.