997.2 Coolant Levels
08-26-2015, 08:13 AM
#16
Racer
I had the same problem, replaced the cap, problem solved!
08-26-2015, 05:44 PM
#17
Drifting
Thread Starter
I've had no coolant related issues since then - I'll have to check tonight when I get home to see where its sitting now. I'd fill it at least to the min line - as that forms a solid reference point to track any more loss.
If the cap is faulty, then as the engine heats the coolant it expands and the system pressurizes. If the pressure regulating system in the cap is broken, it will vent prematurely which then dumps pressurized coolant liquid out when the engine is hot. The thing should not be venting during normal operation.
If the cap is faulty, then as the engine heats the coolant it expands and the system pressurizes. If the pressure regulating system in the cap is broken, it will vent prematurely which then dumps pressurized coolant liquid out when the engine is hot. The thing should not be venting during normal operation.
08-31-2015, 12:06 PM
#18
I've had no coolant related issues since then - I'll have to check tonight when I get home to see where its sitting now. I'd fill it at least to the min line - as that forms a solid reference point to track any more loss.
If the cap is faulty, then as the engine heats the coolant it expands and the system pressurizes. If the pressure regulating system in the cap is broken, it will vent prematurely which then dumps pressurized coolant liquid out when the engine is hot. The thing should not be venting during normal operation.
If the cap is faulty, then as the engine heats the coolant it expands and the system pressurizes. If the pressure regulating system in the cap is broken, it will vent prematurely which then dumps pressurized coolant liquid out when the engine is hot. The thing should not be venting during normal operation.
After being very frustrated and a bit terrified of what could be wrong when I saw coolant leak out all over the left side of my engine bay and exhaust, I replaced the cap with the new .04 cap, went to the dealership and bought some Porsche coolant and refilled things to just at the min mark with 50/50 coolant and distilled water, cleaned everything up REALLY good so that I could tell if even a drip came out, and then drove the car hard and long enough to get the temps up. After 2 separate days of driving with the new cap in place, I have not noticed any leak or seen evidence of a leak at all. I'm cautiously optimistic that the problem has been solved. I was a skeptic too, as the new cap looks a heck of a lot like the old one (I took pics of them side by side), but the number is different and clearly one works while the other does not.
08-31-2015, 01:40 PM
#19
It's the rubber o ring gasket in the cap that gets squished over time with heat and pressure that causes the leak. Comparing the new cap to the old one it's obvious too see. But they don't sell just the cap gasket.
09-07-2015, 11:40 PM
#20
Intermediate
Going by the computer
I have the low/below minimum coolant level. I purchased a new cap, the coolant still sits below the minimum with no problem. I'm learning to just listen to the computer and stop acting like a mechanic. My maintenance is in a month, so will have the tank and wp checked.... but in the mean time, so far so good.
