Questions & Answers for: Chevrolet TrailBlazer code p0128

Error Code P0128 service engine light comes on intermediately my service engine light comes on with error code P0128. What can I do to fix the problem? replace the thermostat.

P0128 Code for a 2004 trailblazer with service engine soon light I went to auto zone said code p0128. I checked Coolant ok. no leaks no cound.. Could it be the thromostat? and if so how do i repair it

...coolant below regulating temp,,,and the p0410 code is comming on from the p0128 code so what you need to do is replace the thermostat and clear the codes and you should be good to go with no ...

p0128 and p0410 trouble codes are on my traiblazer what should i do to fix them ? DTC P0128 IS THERMOSTAT DTC P0410 SECONDARY AIR SYSTEM

code and it read P0420 and P0128. Any ideas what this means? You don't mention any vehicle specific info, but the codes read as follows: P0420 - "Catalyst Efficiency Below Threshold (Bank 1)" P0128 -

I have a 2005 trailblaizer in have a code p1028 You sure that's not P0128? P0128 is the coolant temperature is too cool. Thermostat is stuck open. Replace thermostat and you're all good to go.

...code P0128 is "Coolant Temperature Below Thermostat Regulating Temperature" The most likely cause is a stuck-open thermostat, however, I have also seen defective Engine Coolant Temperature (ECT) ...

getting codes p0128 and p0014. know that the p0128 is probably the thermostat, but was told to change the engine coolant sensor at the same time as the thermostat. How do you know if the ECT is bad? ...

...P0128 code is to indicate a faulty thermostat. Similar codes: P0125 In determining the engine did not reach a "normal" temperature, it takes into account the length of time the vehicle has been ...

...P0128 code came up. Now it has come up again. Temp gauge is running just under 210. How can I get rid of the P0128 code? code p 128 refers to coolant thermostat---coolant temp below thermostat ...