GMC Repair: adding radiator fluid, radiator fluid, combustion chambers


Question
I have a 98 Blazer with 110,000 miles.  I replaced the radiator, water pump, and hoses at 102,000.  Is it common to have to add radiator fluid to the radiator and reservoir about once a month or do you think their might be a leak?  I haven't noticed any leaking or puddles in the driveway.  Is this common when the car gets older even though it have new parts?

Answer
You most likely have a leak whereas the engine coolant is getting into the combustion chambers of the engine and is being burned thru the exhaust.

A coolant system PRESSURE test and or a cylinders pressure test will reveal this fault.


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