In a 1990 Chevrolet Lumina, the engine control module (ECM), which is the vehicle's computer, is typically located under the dashboard on the driver's side. It is often mounted on or near the firewall, making it accessible for diagnostics and repair. To reach it, you may need to remove some trim panels or access it from underneath the dashboard.
If its like the 1993 Lumina it's in the fuel tank.
in your fuel tank
There was no 1989 Chevrolet Lumina produced. First year was 1990. The Flasher Relay on a 1990 is located: Front seating area, driver side, under dash, mounted on passenger side of steering column.
1990 Chevrolet Lumina temperature sender is located on the back side of the thermostat housing. The sender has a wire that goes to the temperature gauge.
on the back side of motor
under the car a little bit behind the drivers seat
Drop fuel tank
Where is the fuel filter located on a 1990 chevrolet blazer?
On my Chevy lumina it is located right by the gas take on the right side of the car.
It is installed on the top of the back side exhaust manifold.
There are four motor mounts located on a 1990 Chevy Lumina. Two on either side of the engine. One the rear and one in front of the engine.
Doesn't have one.