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Buick Regal Problem
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Comments
Never had any problems in 140K on my '95 CC, and 18K on my 2000 GS. However, I have my head under the hood so often, I don't give problems a chance to start.
Thanks again! I love this car, and just can't give up!
The 200F temperature looks about right: I have the same 3.1l engine with my Malibu, and according to manual the thermostat temperature is 195F.
On the other hand, 220F looks high for me. I would expect the fans to engage at about 210F. Just the common sense: the water boils at 212F at the sea level. Of course, the coolant is only 50% water, but...
On the other hand, I do not think that the dash temperature gauge is very precise.
I would suggest to ask the same service adviser to repeat what he told in writing. Say him/her that you will ask the service manager to sign the sheet, and will double-check with Buick customer service by e-mail.
I am sure, though, that the dealership would not stay behind these words. The fans are for preventing overheating. When engine overheated already, it is too late.
Let them check if the fan is working, and is working at right temperature. Anything can happen, from a bad fuse (very probable) to disconnected wires to a bad temperature sensor.
It happens also an air pocket to be left in the coolant system, after replacing the coolant...
Risking to overheat the engine to check the fans...
What looks strange for me, is how fast the temperature increases and decreases. Just when waiting at traffic lights - not when sitting at jam, for example...
Cooling systems are pressurized for a reason. Unpressurized water boils at 212 F at sea level. Each 1 psi pressure on the water raises it's boiling point about 3 degrees F. It's not a linear rise but close enough. Most cooling systems have a pressure cap rated around 15 psi., which will raise the coolant's boiling point to approximately 45-50 degrees higher than 212 F. Your coolant, pressurized to 15 psi, will start boiling at about 260 F. Do the math. How do you suppose pressure cookers work?
I had it machined and the pads replace at 30K. Then the rotor replaced twice in the last 6000 miles.
Any ideas as to why this rotor continually warps on me?