Alright, newly replaced radiator, upper and lower coolant hoses, no leaks visable there. No leaks from heater hoses, no wet carpet inside, and coolant reads 0 hydrocarbons, so where oh where is roughly 32 oz every 3-5 days going?!?!?

 

into the oil?

 

I would say change ur water pump same thing was happening on my friends lexus ls400 it was not visible but it was some how leaking. but he didnt get it fixed it just stopped on him.

 

No problems there, just changed and definitely no water there, I'm starting to doubt the integrity of the water pump.

 

new water pump about 100 dollars brand new at Autozone or you can go the other route and go buy it OEM from Nissan.

 

Did you replace the radiator cap?

 

Properly clean an area in the garage and put down dry brown paper (the stuff they use to cover books with) on an area about 2m but 2m. Make sure the motor is cold (morning) and the cooling system is properly filled.

Park the car with the engine situated roughly in the middle of the paper.

Start the motor and leave it idling while you go have a beer.

Find the wife/girlfriend and bring her to the garage after about an hour.

Remove car from above the paper and ask wife/gf to roll around naked on the paper - I can guarantee you she will find the wet spot and you will know the exact location of the liquid leak and the answer to the mystery.

 

LOLERZ ! !

 

There's also a pump that you can attach to the radiator where the cap goes and super pressurize the system. This makes the leak stand out like niagra falls. A radiator shop should have this.

 

do you have a strait 50/50 mix in there maybe the water is evaporating because your system is not sealed, try the radiator cap

 

+1 to water pump

 

LMAO dude thats genius! I'm gonna try that tomorrow, I mean later...

 

when my waterpump went out (was intermittent at first), the coolant was overflowing from the little overflow hose on the coolant resevoir. when it really went, though, it seeped out of the waterpump seal.

 

I would try the radiator cap first. Not only because it's the cheapest, but because if you can't find any leak it's most likely the cap isn't holding pressure on the system and the water is boiling at a lower tempature than usual.

 

Time for a new cap from the dealer, yay 16 bucks here ya go!

 

+1 for rad cap, then +1 for water pump.

Had a similar problem - and couldn't see the puddle 'cause I have a gravel driveway. Went to a conference one week, and saw the puddle under the car (and following the slope of the underground parkade).

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