1991 Ford F-250 Q&A
1991 Ford F-250 Question: I have a water temperature gauge that is not working.
Check the coolant temperature sending unit on the engine, it might be unplugged or defective. You didnt say which engine is in your truck. If its a 4.9 6 cyl its near the last intake plenum runner, if its a V-8 its on the left side of the intake manifold near the distributor. - Herb Ackside
hello sailboater, i would replace that CTS so you can be aware of your engine temperatures... - your.mechanic