All this is caused by bad quality control from ford on the temperature sensors. I've had 4 so far and each one has read differently, thats why ford dont put actual temperatures on the guage
Since fitting an accurate oil temperature guage I can verify that all 4 of my guages that collectively read O, M, A and L when the fan cuts in all result in the same engine oil temp
So dont worry unless it goes higher than normal.
PS so far I have found 3 temperature senders on the Zetec. 1 is above the thermostat, 2 is in the air intake and 3 is a small one down on the lower engine block. All are routed to the EEC unit so it is the computer thats decides the dashboard guage position
Mad Mole
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Mad Moles Mondeo Madness 2L Zetec, Cams, Stage 2 head, Valve work, Powerflow, Unichip, AEM Ram, K&N, Ecotek, 75mm Lower etc.
192 BHP, Faster than a speeding Duratec!
