I replaced the radiator cap and both thermostat. Know signs are coming from the intake or Manifold gasket. I bought the cooling system pressure tester. I tested the cooling system. The pressure test check is okay, and the test is holding. What else will cause the car to run hot, and not show on the machine, but have the check engine light on? Will a vacuum leak cause the car to run hot and is there any way I can test if one of the vacuum lines or leaking? It's a 2009 Chrysler Sebring Dual VVT 2.4L
My car has an automatic transmission.
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