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thstone · 01-02-2013, 08:22 PM

I don't know how much coolant you're losing but my car has been losing about a 1-2 cups of coolant every month or so. Not a lot, but certainly enough to notice on the coolant tank and require topping it up to the max level before heading out to the track every few weeks.

My local indy says that the water pump has a leak/seep and the coolant evaporates rather than dripping on the ground (I never see any drips under the car). I have been holding off doing the repair until a after the holidays (and when I can get a break in my track schedule).

Since receiving this diagnosis, I will admit that I've been too lazy to get under the car and inspect the water pump for myself to see if there is any evidence to substantiate the claim of a leak/seep. I am planning to replace all 6 coil packs this weekend (12 yrs old, visible cracks, seem to be working ok but replacing to avoid any CEL's/problems) so I'll take a look at the water pump then.

01-02-2013, 08:22 PM	#5
thstone Certified Boxster Addict Join Date: Nov 2010 Location: Los Angeles Posts: 7,669	I don't know how much coolant you're losing but my car has been losing about a 1-2 cups of coolant every month or so. Not a lot, but certainly enough to notice on the coolant tank and require topping it up to the max level before heading out to the track every few weeks. My local indy says that the water pump has a leak/seep and the coolant evaporates rather than dripping on the ground (I never see any drips under the car). I have been holding off doing the repair until a after the holidays (and when I can get a break in my track schedule). Since receiving this diagnosis, I will admit that I've been too lazy to get under the car and inspect the water pump for myself to see if there is any evidence to substantiate the claim of a leak/seep. I am planning to replace all 6 coil packs this weekend (12 yrs old, visible cracks, seem to be working ok but replacing to avoid any CEL's/problems) so I'll take a look at the water pump then. __________________ 1999 996 C2 - sold - bought back - sold for more 1997 Spec Boxster BSR #254 1979 911 SC POC Licensed DE/TT Instructor Last edited by thstone; 01-02-2013 at 08:39 PM.