On a 1989 Chevy Celebrity the heater hose leaves the water pump via a hose barb then runs along the top of the passenger side frame rail and then into the heater core. The heater core is in the firewall below the blower fan on the passenger side of the car. The return hose leaves the heater core and runs along the firewall then to the water outlet below the thermostat.
No................... Its located in the center of the vehicle but you will need to remove the side panels if equipped and then remove the lower heater core cover and the heater hoses.............
Begin by removing the water supply hoses from your 1989 Chevy heater core. Remove the heater core retaining bolts. The heater core can be removed.
YES. Good possibility if it is leaking at the passenger side
The petcock on a 1989 Chevy Celebrity is at the bottom of the radiator on the drivers side.
The oxygen sensor on a 1989 Chevy Celebrity is located in the rear exhaust manifold on top about the center.
The 1989 Chevy Celebrity V6 is rated at 130 hp.
The spark plug gap for your 1989 Chevy Celebrity 2.8 V6 is .045".
Looking in my factory service manual for a 1989 Chevy Celebrity I found no reference to an accessory relay.
on the side of the transmission
There is no fuse on the alternator.
Disconnect the negative battery cable and drain the cooling system.Disconnect the heater hoses from the heater core inlet and outlet connections in the engine compartment.Allowing residual coolant from the heater core to drain. Cap the openings.Working inside the vehicle, remove the lower instrument panel sound insulator.Remove the heater floor outlet duct screws or clips and remove the duct.Remove the heater core cover by removing the attaching screws and clips.Remove the heater core cover.Remove the heater core retainers and remove the heater core.
The thermostat on a 1989 Chevy Celebrity is located under the water outlet fitting. Follow the upper radiator hose, it will end at the water outlet.