from my experience from other vehicles, depending on the side of the head gasket remove the valve cover, then it may be required to remove the intake manifold after that remove the head and scrape the old gasket off adding a new one in the process. the motor can still be in the car when doing this
the intake manifold must be removed, upper and lower, to get the heads off of any v-8 that is domestic
how to change a valve cover gasket on a 97 mercury grand marquis ?
replace head gasket
You probably have a bad head gasket on your engine.
Gasket should be included with new oil filter
To replace the oil pan gasket on the Cavalier you need the tool box to open where it is located. After opening, you can proceed to replace the oil pan gasket.
The Goodyear shop at Boynton Beach Blvd and Jog Rd in Boynton beach quoted my son $380 to replace the Oil Filter Adapter gasket and Oild Sending unit. To me, that is more than just a little on the high side.
Idle air controllers are held on by two screws on one side of the EGR block. Remove the two screws, discard and replace the gasket and reattach. Should take about 10 minutes.
Buy the Service Manual and follow the instructions.
The thermostat gasket for a 1990 Mercury Grand Marquis is the standard "paper" type gasket, and a good RTV silicone is recommended. Permatex makes a sealant well-suited for the purpose - it's called "Water Pump and Thermostat Housing Sealant". You can also use similar sealants, such as Permatex Ultra Grey, Ultra Blue, or Ultra Black.
a ratchet, extension, socket of the correct size of the bolts, gasket remover, gasket scrapper, gasket sealer, knowledge and patients.
Have to take off the head, it's there.
because you have a bad head gasket and oil and coolant are getting into the combustion chamber from the passages.