Trouble code P0128 means:Coolant thermostat (coolant temp below thermostat regulating temp)
2004 gmc envoy with code p0128
Engine coolant Sensor is bad. I have the same error on my 2005.
Trouble code P0128 means:Coolant thermostat (coolant temp below thermostat regulating temp)
Trouble code P0606 means:PCM processor fault
Try change'n your thermostat... worked for me..
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
Code B0265
Yes, a P0495 error code, which indicates a problem with the secondary air injection system, can contribute to a P0128 error code, which signals that the engine is not reaching the proper operating temperature. If the secondary air system is malfunctioning, it can affect engine performance and efficiency, potentially leading to insufficient heat generation. This could result in the engine taking longer to warm up, triggering the P0128 code. It's advisable to address both codes to ensure optimal engine function.
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.
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