The only way to drain all the coolant is to unhook the bottom radiator hose. The radiator does NOT have a drain vale.
It is on the drivers side of the block.
2004 gmc envoy with code p0128
Coolant Temperature Sensor/Switch (For Computer)Engine, Left Front
Engine coolant Sensor is bad. I have the same error on my 2005.
how to replace wheel bearings on 2004 GMC envoy?
Take your car to a GMC dealership and pay $850.
To change the radiator on a 2004 GMC Envoy, start by disconnecting the negative battery cable and draining the coolant from the radiator. Remove any components obstructing the radiator, such as the fan shroud and hoses. Unscrew the mounting bolts securing the radiator and carefully lift it out. Install the new radiator by reversing the steps, ensuring all connections are secure, and refill the coolant before testing the system.
2004 GMC Envoy is on page 28 http://documents.victorytechnologies.com//documents/product/929.pdf 2004 GMC Envoy is on page 28 http://documents.victorytechnologies.com//documents/product/929.pdf
How do you remove the fan shroud on a 2004 get envoy
Trouble code P0128 means:Coolant thermostat (coolant temp below thermostat regulating temp)
The Gmc Envoy has two engine types. Both the Inline six and the 5.3 V8 use a timing chain. They are a lifetime install unless there is a failure.
On a 2004 GMC Envoy, the coolant temperature sensor is typically located near the thermostat housing, which is on the engine block. It is usually found on the intake manifold or near the upper radiator hose. To access it, you may need to remove some components for better visibility. Always consult the vehicle's service manual for specific details and diagrams.