Fluctuating temperature on a Mondeo?
Despite changing, in this order: thermostat, coolant temperature sensor, water pump and temperature gauge, the temperature is fluctuating on my Ford Mondeo. This after years of reaching and maintaining a steady temperature with needle vertical. It now rarely reaches vertical and fluctuates, often dropping right down to 60C even when motorway driving. Any idea why?
Asked on 25 May 2013 by A. N. Clegg
Answered by
Honest John
Replace the temp sensor/sender, which is screwed into the water jacked of the cylinder block. Trace it back along the cable from the radiator fans.
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