03 trailblazer throwing same codes

I have scanned codes P0128 and P1345. Replaced the thermostat and temp. sensor, also the cam and crank sensor. I also replace the VV timing sensor. All the symptoms have gone away. What else could be causing this.


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MBFanatic made a comment.
1 year 4 months ago

Have you done a proper flush of the system? There may be air pockets in the system and the coolant is not circulating. Which in turn can trigger the P0128 code.


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