when should i plug up my engine block cord and where

Asked by Dec 10, 2013 at 12:21 AM about the 1998 Pontiac Grand Prix 4 Dr GTP Supercharged Sedan

Question type: Maintenance & Repair

my car over heats and leak anti freeze

1 Answer

58,915

My 2000 Owner's Manual shows a provision for the engine block heater cord on the large black metal bracket under the hood on the driver's side. About the overheating, can you see any leaks or is it boiling over? These cooling systems must be blead. There is a bleeder screw on top of the thermostat housing (where the top radiator hose connects to the engine). With the engine cold and off, open this bleeder screw. Add your coolant to the radiator until a steady stream of coolant comes out of the bleeder screw. Close the bleeder screw and fill the radiator to the very top. Put the radiator cap back on. Now fill the plastic recovery tank about half way. Also, pull the oil dipstick. Is there white milky "goop" on it? If so, you need to have the upper and lower intake manifolds resealed. These 3.8s are notorious for intake gasket failure. HTH. -Jim

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