I had the code read and it says it has something to do with the engine not reaching the proper temp. Any idea why this is happening?
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2005 Ford Explorer
Question: Why is the "check engine soon" light on?
Answer #1gmc4me January 27, 2012, 13:52Journeyman
Possibly a bad coolant temp sensor? Does the car overheat?
Answer #2Camster January 28, 2012, 14:35Technician
Answer #3Accurate Automotive & Tire Warehouse (23 Answers) , Burlington, MA - (781) 328-1720baccurate February 03, 2012, 11:51Technician
I think it should be a P0128 (Low Coolant temperature). If it takes the vehicle too long to achieve operating temperature, this code can set. Usually the thermostat is stuck partially opened. I recommend replacing it with a factory thermostat.
I have also had oxygen sensors cause this problem as well, will need equipment to test them.