LS2 V6-3.0L VIN R (2000)
1.
By visual inspection, eliminate all other potential leak areas such as oil cooler cover, thermostat housing, coolant bridge, and throttle body coolant
hoses since they can be misdiagnosed as a cylinder head gasket leak.
2.
Thoroughly clean leak area
3.
Using a blacklight or tracing powder, verify source of coolant leak.
4.
If leak is determined to be from head gasket, repair as necessary. Verify repair by visual inspection after engine reaches normal operating
temperature.
Throttle Body Coolant hoses
1.
Visually inspect throttle body coolant hoses for leaks under throttle body.
2.
Replace throttle body hose clamps and/or hoses as necessary. Verify repair by visual inspection after engine reaches normal operating temperature.
Extension Housing O-Rings