AO Silver Member
Join Date: Mar 2003
Re: Where is it going?
If you can't find a problem with the water pump....
It's possible the leak could only be obvious with a coolant system pressure test.
I had a persistant leak in the plastic coolant header tank. This was only found after pressure testing (by the dealer although any decent garage should be able to do it). The leak was only found with the engine hot and externally pressurising the system. In normal operation the slight loss during driving (as steam) wasn't obvious. Took the dealer three attempts to find it - basically because he wouldn't believe me ("all OK sir, nothing to worry about"), and pressure testing over-night and therefore engine cold didn't show anything!
'A business absolutely devoted to service will have only one worry about profits. They will be embarrassingly large.' - Henry Ford.