Have a question about the function for the coolant temperature sensor located in the intake manifold right by the thermostat housing.
The temperature gauge hasn't worked since I bought the truck a couple years ago. Finally decide to fix it. I knew the gauge was functional, because it would perform the full sweep when the key was turned to on. I looked in the engine and found the temp sensor on top of the intake Manifold and assumed that was the only one. Replaced it and no luck, gauge still not working.
Since then I got a copy of the factory service manual and have run through the diagnostic steps for the temp gauge not working which led me to finding the other coolant temp sensor located in the side of the driver side cylinder head. This is the only temp sensor discussed at all (that I can find) in the fsm.
Does anyone know what the purpose of the first temp sensor is?
Intake manifold coolant temp sensor
Item 22 in the figure below
Continued in next post
The temperature gauge hasn't worked since I bought the truck a couple years ago. Finally decide to fix it. I knew the gauge was functional, because it would perform the full sweep when the key was turned to on. I looked in the engine and found the temp sensor on top of the intake Manifold and assumed that was the only one. Replaced it and no luck, gauge still not working.
Since then I got a copy of the factory service manual and have run through the diagnostic steps for the temp gauge not working which led me to finding the other coolant temp sensor located in the side of the driver side cylinder head. This is the only temp sensor discussed at all (that I can find) in the fsm.
Does anyone know what the purpose of the first temp sensor is?
Intake manifold coolant temp sensor
You must be registered for see images attach
You must be registered for see images attach
Item 22 in the figure below
You must be registered for see images attach
Continued in next post