Ford Forum - Enthusiast Forums for Ford Owners - HELP! Thermo Stuck at Cold/Check Engine Light

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South Side Polish

Feb 21, 2006 10:23 PM

HELP! Thermo Stuck at Cold/Check Engine Light

My Thermostat is stuck at cold, never moves no matter how long the engine is running. Also, the Check Engine light has been on. Could these two things be related? It's a 2000 Explorer Sport 4.0L. Could this also be affecting my fuel economy? Any help would be greatly appreciated.

Duffs302

Feb 22, 2006 02:28 PM

RE: HELP! Thermo Stuck at Cold/Check Engine Light

Yes, it does affect every thing. It sounds like the sending unit, even with the thermostat stuck open the gauge will still move.

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