93 century resivor empty and boiling - 1993 Buick Century

The relays on a Buick century 93 is on the right side of the car up front behind the headlight you will see four relays one would be for the AC take ones for the fuel pump one's for the blower motor and one for the AC blower motor I had to sign up because I'm tired of you guys not knowing where things are at on a 93 Buick century I own one and I always work on it and it took me a long time to find those relays and they're right there in your face there's four of them

this is from a boiling engine
It is because the coolant is subject to excessive heat probably from head gasket or cracked head, inoperative cooling fans, blocked radiator cores or flaked fins on the radiator core. The initial problem may be from a coolant leak that dropped the coolant level.to a dangerous level.

If you are talking about the coolant over flow??? You may have a bad radiator cap, maybe low on coolant, maybe thermostat. You haven't provided a lot of details here so it's hard to say for sure.

is it the proper mixture? is the fan going on? did you bleed the system?

Replace the thermostat and check the fan

Fuel pump is in the tank, fuel filter is along the subframe rail by the rear wheels, either left or right side.

My experience has been they are not interchangeable - a number of sensors are usually unique to the specific cluster type installed.

your thermostate is probably on the block sideways in whitch case you need to remove the air filter outr of your way and loosen the clamp on the thermostate housing. from there take out the 3 bolts holding the thermostat housing in place and remove it. Caution water/antifreeze will come out. take the thermostate out watching where the gasket has been placed and install the new one after cleaning the suface of the old gasket. sometimes it is good to use indian head gasket sealer. there will be 2 bolts on top and 1 bolt on the bottom under the housing. install the new thermostate tightn the hose replace your filter and fill the over flow resivor only to the point on COLD MAX. take the cap off the radiator start the car wait for the thermostate to open and fill the raditor the rest the way up. if it starts to boil over just shut the car off and let it cool than add more water *** needed...

Sounds like air is in the system, probally because it's overheating. Check the water pump. The impellor is plastic and breaks causing 0 circulation.

The blowing of air into the coolant resevour is caused by a leaking head gasket. What's happening is the cylinder is blowing air into the cooling system causing this to happen.