- Messages
- 3
- Likes
- 0
- City
- Pontiac
- State
- MI
- Country
- United States
- What I Drive
- 2011 fiesta se
I drove for 10 hours on an 80 degree day, when I got home I had lost some coolant, it was below the minimum line. I topped it off and drove it the next day and drove around at 45 speeds, coolant temperature readout on the secret menu would get up to 95+c. I had a blown fuse, unsure if the fan relay also on the outside box was bad but I got new ones. I replaced the fan assembly and "resistor block" in the interior, it did not look bad or the pins on the connector. I test drove the car and it would run fine around 84-86c on the highway but then I parked at a store after driving about 8 miles, the temperature continued to rise until I shut it off. The fan has come on before and after I replaced it when I would turn on the defroster or the ac and when the car would be started if the temperature was somewhat warm it would come on for a bit at first and bring the temperature down then shut off. . I have had intermittent cold ac but it started working again and better it seemed for now after the repair. I tried to burp the cooling system as well by squeezing the upper hose. Computer at AutoZone showed a code for the O2 sensor, with 3 secondaries: lower than expected coolant temperature, map/maf sensor and another one I lose the paper, which led me to believe the O2 sensor got hot that's why it threw the code and it had low coolant, perhaps it had gotten hot then sprayed off on the over spray valve and there was loss of power because the car was running harder hence map and maf codes. I have not been able to find anything else except for possibly coolant temp sensor, thermostat, or a wiring issue. I had the problem about 8 months ago where my car actually gave a warning light for overheating and I took it to shop and it was fixed with a fuse. Its ran fine since then , 3 months prior to that it got a new water pump and timing belt etc.