Depends on where you live and who fixes it. Expect to pay at least $500 and up.
You will need to remove the intake and the exhaust manifolds and then you can remove the heads to replace the gaskets.
can i reset it or replace it ,where is it on the car
The ECM is located behind the glovebox on a 1991 Cutlass Ciera. Pull the glove box out to see it. Once located remove the mounting hardware and unplug it from the car. Replace the unit.
yes, most of the panels can be used from one to the other
Yes, you do.
how do you replace the headlight switch on a 1993 cutlas ceria*
cracked or broken wiring, blown fuse
where is the knock sensor located on 93 cutlass ciera
where is cam senor on a 91 cutlass ciera 3300
the thermistat is located inside the upper radiator hose, where it connects to the motor. have the car off and cold. just unbolt it and pull the old w/gasket. replace with new and gasket. bolt in. the attach hose. top off antifreeze
i used this document for my 93 ciera. amazingly easy to follow. http://www.installdr.com/InstallDocs/GM/PDF/460009.pdf
Thermal relay is stuck. Replace it.