To replace the heater core in a 1988 Chevy Celebrity, first, disconnect the negative battery terminal and drain the coolant. Remove the dashboard and the center console to access the heater core housing. Disconnect the heater core hoses from the engine compartment, then unscrew and remove the heater core from its housing. Install the new heater core, reassemble the dashboard, and refill the coolant before reconnecting the battery.
There is a fuse for the blower motor on the fuse panel, I do not know of a relay.
what is the wiring diagram for an 1988 Chevy celebrity stero
If you are asking about the heater blower motor it is mounted to the heater ducting in the engine compartment on the passenger side.
If I had to replace a fuel line I would get a replacement out of a car in a wrecking yard and install that.
A "heater" or a "heater core"?
The fuel filter in your 1988 Chevy Celebrity is on the driver's side behind the rear wheel next to the fuel tank.
The fuel pump on your 1988 Chevy Celebrity is in the fuel tank.
The 1988 Chevy Celebrity uses distributorless ignition. There is no provision to alter timing, the engine control module takes care of that.
In the fuel tank
100 lb or above
Drain the water from your 1988 Chevy cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. The heater core will come out.
Take the glove box out. Look in behind. Have fun -- it's not a nice job.