The oil filter of your Impala is on the front of car by bottom you should be able to see it by the drain pan look straight up. As far as your Cavalier have the coolant system pressure checked as it may be ahead gasket problem. Of course I am assuming you have tried a new thermostat. Also, check radiator with fans disconnected for cold spots if you feel any the radiator is bad.
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Tuesday, October 3rd, 2017 AT 9:46 PM