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Water Outlet Hose Connector Leak

539 Views 5 Replies 4 Participants Last post by  AndyQ, 
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Literally just changed this hose on my 2011 due to a hairline crack in the plastic connector; within a few weeks of changing it, noticed a very small coolant leak around the connector again. Had to take the car out last week before I got a chance to investigate a fix, next time I checked under the hood, I noticed some coolant laying on top of the front edge of the engine casing - is it reasonable that the coolant leaking from the connector could travel that far after spraying out from the connector? Or am I possibly looking at a more complicated issue? Starting to feel like a full time job dealing with coolant leaks in the Cruze.
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The best way to find coolant leaks is to pressure test when the engine is COLD.
You can make boost leak tester which can also be used to pressure test the coolant system.. Assuming you have access to an air compressor (or even a cylinder of compressed air or welding gas).

All you need is a guage, 1/4 inch pressure regulator and air hose fitting and a length of 5/16ths fuel hose.

I'd recommend doing that route if you have access to a compressed air source and leaving overnight. Of you have a coolant leak this will find it for sure.
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