07 5.3L Suburban -- where to fill coolant?
February 21st, 2010, 1:52 PM
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Apparently when you purge the coolant system, GM wants you to add two stop-leak pellets to the system -- through the t-stat, so it doesn't plug the reservoir tank. You can buy them at the parts counter. Sounds kind of hokey to me, but I'm told it's in the service manual.
February 21st, 2010, 2:05 PM
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LOL! Okay! The last time I added stop leak pellets to a GM radiator (10 y/o 83 Chevy Cavalier), it was the middle February, and it plugged my heater core up in about 45 seconds in a middle of a snowstorm. Later that afternoon, I was the only customer in a large south Jersey Ford dealership. I remember the guy looked at us two, blue from the cold and said rubbing his hands, "you folks must really need a new car!" It took about 5 minutes to pick out a new '93 Escort for the wife (which my niece is still driving today!).
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