Does your Chevy Cruze, Sonic, or Aveo have a P0597 or P0598 heated thermostat code? In this video we will walk you through how to test and how to fix this common issue found on GM Ecotech 1.8 and 1.4 engines, including quick easy tests to identify the fault and also step by step instructions on thermostat replacement.

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0:00 Intro
0:34 Testing Specs
1:08 Ohm Testing Thermostat
2:20 Checking Computer Control
4:30 Testing New Thermostat
4:42 Removing Thermostat
7:00 Clean Sealing Surface
7:39 Installing New Thermostat
9:21 Filling Coolant
10:24 Conclusion