Fastener Tightening Specifications. GMC Truck Yukon XL

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2000 🢒 Yukon XL - 2WD 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Fastener Tightening Specifications

Application	Specification
Application	Metric	English
Accumulator Bracket Mounting Nut	9 N·m	80 lb in
Air Inlet Actuator Mounting Screw	1.6 N·m	14 lb in
Air Outlet Mounting Screw	1.6 N·m	14 lb in
Blower Motor Relay/Resistor Screws	1.6 N·m	14 lb in
Blower Motor Insulating Cover	1.6 N·m	14 lb in
Compressor Bracket Mounting Bolt	50 N·m	37 lb ft
Compressor Mounting Bolt	50 N·m	37 lb ft
Condenser Mounting Bolts	9 N·m	80 lb in
Evaporator Pipe to Accumulator Nut	16 N·m	12 lb ft
Evaporator Pipe to Condenser Nut	16 N·m	12 lb ft
Evaporator Tube to Evaporator	28 N·m	21 lb ft
Extended Console Mounting Screw	1.6 N·m	14 lb in
Floor Air Outlet Screws	1.6 N·m	80 lb in
Heater Core Cover Screws	9 N·m	14 lb in
Heater Hose Mounting Bolt	25 N·m	18 lb ft
Hose to Accumulator Nut	16 N·m	12 lb ft
Hose to Condenser Nut	16 N·m	12 lb ft
HVAC Module Mounting Nuts	4 N·m	35 lb in
HVAC Module Mounting Screws	4 N·m	35 lb in
HVAC Module Screws	1.6 N·m	14 lb in
Mode Actuator Mounting Screw	1.6 N·m	14 lb in
Negative Battery Cable Bolt	17 N·m	13 lb ft
Passenger Compartment Air Filter Access Door Screw	1.6 N·m	14 lb in
Pressure Cycling Switch	4 N·m	35 lb in
Refrigerant Hose to Compressor Bolt	34 N·m	25 lb ft
Temperature Actuator Mounting Screw	1.6 N·m	14 lb in

Control Settings			System Response
Mode Control	Temp Control	Fan Switch	Blower Speed	Heater Outlets	A/C Outlets	Defroster Outlets	See Remarks
--	Cold	--	Off	No Air Flow	No Air Flow	No Air Flow	--
Upper	Cold	Lo	Low	No Air Flow	Air Flow	No Air Flow	A,C,D
Upper	Cold	Low to Hi	Low to High	No Air Flow	Air Flow	No Air Flow	A,B,C,D
Upper	Cold	Hi	High	No Air Flow	Air Flow	No Air Flow	A,D
Bi-Level	Cold	Hi	High	Air Flow	Air Flow	No Air Flow	A,D
Lower	Hot	Hi	High	Air Flow	No Air Flow	Min Air Flow	A,D
Defog	Hot	Hi	High	Air Flow	No Air Flow	Air Flow	A,D
Defrost	Hot	Hi	High	Min Air Flow	No Air Flow	Air Flow	A,D
A = Engagement of the detent must be felt in each mode. B = Noticeable blower speed increase must occur from low to Med 1, Med 2, Med 3, and high. C = Listen for changes of air noise from recirculation door closing. D = Some air bleed will occur through defroster and side window defogger vents in heater mode.