Disappearing H2O

[bigbluesuburban]

I am adding water every 2-3 days to my radiator. I can tell when it gets low because the heater works and the temp skyrockets when an airbubble surrounds the temp sensor.

I have no visible leaks and I don't smell burning antifreeze. The oil is not milky and everything else works great

SOOOOO... Where the heck is the water going?

 

[beater_k20]

replace your radiator cap. i've seen alot do just that when the radiator cap is bad.

 

[79k20350]

check under you carpet...possible leaking heatercore.

 

[roadnotca]

Your leak might in the fins and tubes of the radiator core, and evaporating before there's enough to drip.

 

[bigbluesuburban]

Replaced the cap with a pressure release cap to make refilling easier. AND... replaced the overflow reservoir cap because the rubber inner grommet went missing... Water still disappearing... Dangit

 

[bigbluesuburban]

No wet carpet... I am REALLY glad about this!!!

 

[bigbluesuburban]

Hmmm... I guess I should pressure test the system then huh? Ok well I am off to NAPA tomorrow to buy a cooling system pressure test kit.

 

[bigbluesuburban]

Ya know, I just thought of something. I disconnected the rear heat because it intruded in the cargo area too much. I need to check all those hoses and make sure that my "bolt&hose clamp" heater hose sealing system is still functioning properly.

 

[sandawgk5]

I was loosing water and it was coming out of the weep hole on the waterpump. No visible leaks anywhere I noticed my waterpump shaft was not tight as it wobbled when the engine was running. I replaced it and no problems

Ira

 

[Slapperbar]

Could be the intake front passage. Gasket may be bad and you're ingesting it in either #1 or 2 cylinder.

 

[79k20350]

Ya know, I just thought of something. I disconnected the rear heat because it intruded in the cargo area too much. I need to check all those hoses and make sure that my "bolt&hose clamp" heater hose sealing system is still functioning properly.

id be wiling to bet that this is your cause...

 

[roadnotca]

Ya know, I just thought of something. I disconnected the rear heat because it intruded in the cargo area too much. I need to check all those hoses and make sure that my "bolt&hose clamp" heater hose sealing system is still functioning properly.

Rear heat, WOW! I've only seen one of those in print.

 

[bigbluesuburban]

Rear heat, WOW! I've only seen one of those in print.

I kept the heater core just incase I decide to put it back in more out of the way than the original installation.