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Alero
In the fuel tank
Put the "O" ring on the line and lubricate it with a little silicone.
It is in the gas tank.
You buy tools and install it!
Mounted on top and inside the fuel pump.
Under the car, behind the driver.
To replace most heater cores you have to remove the dash on the passenger side.
It is located under the car close to the gas tank
you need to replace your heater core.
I get about 30 miles to the gallon with my olds achieva.
1992 olds Achieva does not have that switch. ECM receive signal from the coolant temperature sensor and send command to relay #6 for turn on/off the radiator fan. Relay #6 is located in the motor compartment on the fireboard.