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This truck is a 1990 f250, it has the 5.8 with the m5od 5 speed.
Where is the coolant temp sensor located on this truck? The gauge is dead in the cluster. Is this a common problem or is it more likely for the gauge to be bad?
The ECT is close to the rad hose but that's not what drives the dash gauge.. it has a seperate single wire sensor that sits right in front of #5 injector on the lower intake.