Radiator tank or overflow tank leaks.

1991 CHEVROLET S-10
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AMELIA23
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  • 1 POST
My overflow tank holds water until we travel a distance. When we come home after driving 100 miles, it is always dry. Sometimes, when I park the blazer there will be a small puddle of antifreeze underneath. It does not always leave a puddle every time I park.

My temperature gauge is always normal. If the overflow tank has a crack, how would I find it and patch it? Or would I have to replace it? Someone else suggested putting stop leak in the radiator. Will this stop the leak?
Any information you can give would be greatly appreciated. I don't have much money, because I am a single parent of 2 and I don't know much about fixing things, but I want to learn.

Thank you.
Sep 24, 2011 at 1:29 AM
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MHPAUTOS
  • ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
Start with getting a coolant system pressure test done, this will help locate any small coolant leaks, this isa cheap and quick test that all mechanics can do while you wait.
Sep 24, 2011 at 1:32 AM
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