Having just installed my Stage One kit, I was just looking at my thermostat. I used a turkey baster to remove the coolant, instead of draing the radiator. As I put the coolant back in I dicided to manually open the thermostat with a screw drive (by pushing down on it) to insure that there was no air bubble there.
The thermostat has an inverted V on the radiator side that aligns a pin on the disk. Pushing down can cause the pin to "misalign" and not close fully. I was concerned, as the car has been runnig cool for the last two weeks, and took it apart yesterday. YEP,,,,,the stat was not fully closeing for the last two weeks. I had days that temp never reached the first line on the 5 mile trip home from work. Yes, I do sit in traffic too. At no time did the temp go too high, but it did stay significantly lower the majority of the time.
A down side may be that the PCM may see the car as cold and run richer?
George
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03 GT PT, Inferno Red w/factory flames, AutoStick, Stage 1, Mopar BOV, BTG duals, Airaid, 5 HP fuzzy dice
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