This includes the 4.8 L, 5.3 L and the 6.0 L workhorse engines. You'll need a 19 mm deep socket, but a 3/4 standard size also works.Īnother thing to mention, in this article we're concentrating on the Chevrolet V-8 engine. With the radiator cap removed it flows like a tidal wave. If you leave the radiator cap on it comes out slowly. Also remember if you do uninstall it that coolant will come out. Obviously, only remove the sensor on a cold engine. If you can find the number one spark plug boot you'll find the sending unit. In this article we'll talk about how to determine the coolant temperature sensor is actually the problem with the vehicle and not the other possibilities that exist.Ībove you'll see the component location diagram for the coolant sensor. Sensor, replacing the thermostat and water pump becomes a for sure waste However, if the failure is with the Chevrolet coolant temperature Especially since, problems with the water pump and finding it necessary to replace the thermostat on vehicles with over 100,000 miles remain a real possibility. It's easy to buy into this type of quick diagnosis. With that said, a quick search on the Internet might lead one to believe replacing the water pump will take car of the issue. This allows them to enjoy better reliability than the parts of the past. I think they improved the manufacturing process on these moving parts. However, it's usually on high mileage vehicles or ones with neglected coolant systems. Sure cars and trucks still need thermostats replaced once in a while. This was a common repair back in the day, but not any more. Retrieving this trouble code might lead you to believe it's time to replace the thermostat. That's the official definition from my OBD II diagnostic code book. The trouble code stands for coolant temperature below thermostat regulating temperature. The perfect example is when this part sets a code P0128 in memory. The Chevrolet coolant temperature sensor problem remains one of those issues that can mimic or lead you to believe other problems exist with the vehicle.
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