2002 Saturn SL1 Q&A
2002 Saturn SL1 Question: Check engine light on. Auto Zone diagnosed and said it was the coolant sensor.
There is no repair section in the owners manual. Also, most Saturns will need a new thermostat with a coolant sensor code, at least that is how many I have done have worked out. You might think about having a shop really inspect the car, the AZ guys mean well, but they aren't mechanics. - dandd