Quote:
Originally Posted by charles546
my son has an 2002 silverado 1500hd.heater core blew out and he got truck hot.replaced heater core and had a little trouble getting air out of system.truck now runs fine at correct tempture about 190 degrees.problem is overnight all of the pressure does not bleed off.doesnt blow water out when you remove cap but will blow cap off if you dont hold it down.will this cause any problems?motor is the 6.0
thanks charles
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FORGOT TO MENTION do not use drinking water with the dexcool. do not mix dexcool with compatibles / universal coolants. GM dexcool is what is required WITH DISTILLED WATER ...............
ALWAYS use 50% antifreeze mix min. I use 65% has nothing to do with freeze its all about corrosion !