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Prestone leak stop

Tiny
THEAVNER
  • MEMBER
  • CHEVROLET VENTURE
I have a 2002 Chevy Venture minivan, 3.4 liter engine with 55,000 miles. I have a coolant leak in the lower right side of the radiator which I believe is coming from the gasket where the aluminum radiator tubes join with the plastic side. I thought about adding prestone super leak stop to close the leak but I did not know if this type of product will cause problems with my cooling system. Is is safe to add leak stop to the cooling system or will this create a new set of problems?

Thank you
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Thursday, February 1st, 2007 AT 7:37 PM

1 Reply

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
NNNOOOOOOOOOOO!!!!!!!


https://www.2carpros.com/forum/automotive_pictures/30961_scarry_1.jpg


Don't do it!!!!!

Fix the leak. The problem with stop leak is isn't isn't too smart, it thinks any small passege inside the motor or t-stat or radiator or heater core is a leak and lugs that up too.
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Friday, February 2nd, 2007 AT 5:50 AM

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