loopy smurf
New member
Changed the oil (in both the Grand Prix and the Montana), and put a new thermostat in. SES went out when the engine was actually able to get to operating temperature! (original owner had put a 180* thermostat in)
Changed the oil (in both the Grand Prix and the Montana), and put a new thermostat in. SES went out when the engine was actually able to get to operating temperature! (original owner had put a 180* thermostat in)
180* thermostat shouldn't throw a code unless it's stuck open.
Exactly.^ that's what a warranty is for