My girlfriend has a 94 Saturn SL2. She bought it a few months ago with
78k miles on it. Since she's had it, the engine revs up high for about ten seconds after start. It also did the same when she puts the car in park before turning the engine off. A couple of times, the came home with the coolant boiling out of the tank. The last time it did that, we took to the shop. They said that they would have to change the coolant temperature sensor, the tranmission fluid temperature sensor, and the air temperature sensor. Needless to say, they say that the bill will go up to $650. My girlfriend had a friend who also had a shop. He took it to his shop and he said all he did was take the termostat out. Not replace it, but just took it out. He said she could come back during winter and he could put it back in.Is this okay to do this to a car? We live here in Houston, and it gets pretty hot and humid. Winters are pretty mild--the temperature hitting below freezing shuts the whole city down...
Just asking for opinions...