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P0118 engine code explained: Causes, symptoms, and fixes for coolant temperature sensor issues

The P0118 code means that the engine control module (ECM) has detected a voltage signal that’s too high from the engine coolant temperature (ECT) sensor (below). In practical terms, the ECM believes ...
GM Authority

Your GM Vehicle’s 2.0L LSY Engine May Be Overheating Because Of This Part

A faulty Engine Coolant Temperature (ECT) sensor may lead the turbocharged 2.0L I4 LSY gasoline engine in certain GM vehicles to run hot or even overheat. To be clear, these vehicles are not under an ...
Machine Design

Plastic helps coolant sensor survive hot engines

A low-coolant sensor from Entratech Systems sits directly in radiators of trucks, off-road vehicles, and marine equipment. A low-coolant sensor from Entratech Systems, Sandusky, Ohio ...
Hot Rod

Waterless Engine Coolant and Cooling System Basics

Author's note: In the Jan. '09 issue of HPP, the technical article "Keep a Cool Head" described installing Evans NPG coolant in a Pontiac engine, along with other modifications. Due to the varied ...