Car Questions
RepairPal is your advocate for car care advice and guidance

Coolant leak

(2006 Cadillac STS)
in Thomasville, GA on January 26, 2011
replaced water pump twice, replaced gasket, still have leak
Displaying 1 answers & 0 comments
Popular Answer
Was the gasket surface cleaned properly? Make sure the surface is not damaged in anyway. Did you use the gasket "dry" or did you try sealer like the Right Stuff by Permatex or other similar sealer. The way an automotive shop would locate the leak is by removing the radiator cap and attaching an adapter that screws on in place of the radiator cap. Something that looks like a bicycle pump with a pressure gauge attached to it is used to "pump up" pressure to simulate pressure generated when the cooling system is at operating temperature, the leak is then found sometimes it is obviously leaking from a coolant hose or cracked housing, failed gasket or water pump, sometimes the engines cooling system needs to be inspected from below or inspected using a mirror and flash light.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
One heater core line is colder than the other
My 97 Cutlass Supreme has recently begun having serious issues. For the past month or so there has been a steady ...
Didn't find what you were looking for?