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Join Date: Feb 2008
Location: United Kingdom
Re: alfa 156 2.5 v6 thurmostat problem :(
I think you mean the fan switch has 1 wire instead of 2. The Thermostat which I think is your problem is merely a temperature operated valve which opens as the watertemperature passes a predetermined point. You may just have something wedged in the current one and this is allowing water to pass all the time and that would keep the engine cooler or the wiring is dodgy and as airflow pulls the wires, the circuit is broken and the signal is lost, so the guage drops off.