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.
Take your car to a GMC dealership and pay $850.
how to replace wheel bearings on 2004 GMC envoy?
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.
It sounds like you need to change the 02 sensors.
Change oil pump 2003 Gmc Envoy