GrandRegal Posted October 16, 2013 Report Share Posted October 16, 2013 I've replaced the t-stat on my car and make sure to bleed the cooling system but have still ended up feeling bubbles in the upper radiator hose. The car is a 1993 Regal 3800 with 110000 miles on it. The car does not overheat or loose much coolant but i am concerned it might have exhaust getting in the coolant. Any ideas on what it could be or what I should do would be great. I was thinking maybe a block sealer or something. Thanks Video link to bubbles in radiator: Quote Link to comment Share on other sites More sharing options...
z34Phoenix Posted October 16, 2013 Report Share Posted October 16, 2013 if you are concerned, try doing a compression test and coolant pressure test. Quote Link to comment Share on other sites More sharing options...
Galaxie500XL Posted October 16, 2013 Report Share Posted October 16, 2013 Well, "block sealer" would be an absolutely last resort. A bad radiator cap could cause your issues, if it's no longer holding pressure, the boiling point of the coolant would drop quite a bit, and could cause bubbles, particularly if you live at a high altitude...lower pressure equals a lower boiling point for the coolant. Quote Link to comment Share on other sites More sharing options...
dewitt3 Posted October 22, 2013 Report Share Posted October 22, 2013 do any of the pour in the coolant products stop water leaks in and around the pistons.??? thanks Quote Link to comment Share on other sites More sharing options...
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