The jack is under the back seats of the envoy.
Under the back seat
To remove spare a tire from a GMC Envoy pull at the base of the cable this should free the bracket under the tire. Then take your jack lift up on the tire and slide it off. If you can not remove the bracket you can go to an auto shop and have it removed.
Change oil pump 2003 Gmc Envoy
How do you change a serpentine belt on 2006 Envoy
How to change brake pads on 2002 GMC Envoy front brakes.
still need to know how many quarts of oil it takes to change my oil in a '04 GMC Envoy?
GMC Envoy was created in 2002.
On the 2005 GMC Envoy, the block heater is right above the left side engine mount. If you turn your tire's fully to the left you can see the mount right above the motor mount.
Take your car to a GMC dealership and pay $850.
Where is the computer located on a GMC Envoy?
The GMC Envoy was produced in 1998 and not again until 2002. The Envoy was produce until 2009. GMC is no longer producing a vehicle with the name Envoy.
GMC stopped production in 09. wikipedia.org search: GMC Envoy