Replacing the head gasket on any vehicle is a long and complicated process, however if you wish to see basic step-by-step instructions go to the related question on the right side of the page "How do you replace a head gasket?"
The short bolt torque specs for the head gasket of a 2000 Pontiac Sunfire is 43 foot pounds. The torque specs for long bolts is 46 foot pounds.
It's between the engine block and the cylinder head.
1200 $ for a new head and instalation
how to replace a distributor gasket on a 2000 Pontiac grand am 3.4l
Bad trunk lid gasket. The gasket may have come loose or got cut.
You don't
Replace the gasket with a new one.
Leaking hose? Defective thermostat housing or bad thermostat gasket? Bad water pump or gasket? Leak in radiator? Leak at heater core? Leak at head gasket? Coolant recovery tank?
Might I suggest that either the leak was/is not at the timing cover gasket, or maybe something went wrong on the gasket install?
The 1999 Pontiac cylinder head gasket bolt torque specification is 160 pounds. The intake manifold bolt torque specification is 90 pounds.
Replacing the head gasket on any vehicle is a long and complicated process, however if you wish to see basic step-by-step instructions go to the related question on the right side of the page "How do you replace a head gasket?"
If you're doing the job yourself, and have all the necessary tools, the cost will be only that of the gasket and maybe some PermaSeal. You can check Autozone's website for the gasket price.If you're having it done at a shop, you're probably looking at several hundred dollars.FriPilot