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We are having a radiator leak issue. We have replaced the radiator clamp and then the hose itself. However, it is quite strange that the clamp begins to loosen overnight (may be due to the cold). We tighten it every morning and that seems to stop the leak. We continue to check it throughout the day and it is still tight, however, again in the morning it is loose and leaking again. How can we fix this problem?

Answers from the Automotive Experts

Audra Fordin, Owner at Great Bear Auto Shop Hi Rebeca, Yes, that is quite strange. Once the hose is tightened, it should not become lose. When you go to tighten it, are you actually able to make it tighter? Or are you just moving the hose closer? I have seen on may cars, a hairline crack where the hose meets the outlet. Next time you open the hood, look very closely to see it there is another culprit causing the leak. Mechanically yours, Audra PS (your 2009 Avalanche should still have a warranty with the manufacturer)

Laurie Sarno, Co-Owner at Super Girls Auto Hello Rebeca- you may have a bad clamp- or the water outlet or inlet fitting on the radiator may have a crack - hope this helps- thanks Super Girls Auto.

Lori Johnson, Owner and Instructor at Ladies Start Your Engines Dear Rebeca, I would check into a new clamp. Maybe something different than what you used this time. You shouldn't have to tighten the clamp once it's on. Check with your local automotive store for options. Lori Johnson

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