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The only way to drain all the coolant is to unhook the bottom radiator hose. The radiator does NOT have a drain vale.
2004 gmc envoy with code p0128
how to replace wheel bearings on 2004 GMC envoy?
Take your car to a GMC dealership and pay $850.
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
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.
The thermostat is located inside of the top radiator inlet. The inlet is behind the alternator, and the alternator will have to be removed.
It sounds like you need to change the 02 sensors.
How do you change a serpentine belt on 2006 Envoy
Change oil pump 2003 Gmc Envoy
The AC recharge port on a 2004 GMC envoy is on the low pressure connection. It is the larger of two hoses near the firewall.