Check engine light
I’m going on a long trip and don’t want to
travel with my check engine light on. I went to
O’Reillys and they told me it could be
because of the temperature dropping or my
thermostat is bad. It’s been three days and
the light is still on.They said it should go away
after a day but nothing has changed. I have
checked the coolant and it’s not low other
than that what should I do?