when you look at the top of the motor you will see four black plastic caps with wires going to them you need to take them off and you will need a long spark plug remover to get to the spark plugs but that is were they are located
8 spark plugs
There are four spark plugs on each side of your 1991 Chevrolet engine. The spark plugs will be near the bottom of the engine.
The battery is located in the trunk under the furthest location. I just had mine replaced
the plugs are going through the rocker cover under the fuel injector
two spark plugs are located to the right side of the engine and the other two spark plugs are located on the left side of the engine.
It is in the driverside head between the first 2 spark plugs.
Every gas burning internal combustion engine has spark plugs. Diesel engines do not. Your Impala is not a diesel, so it has plugs.
I believe that it is your oxygen sensor.
3 of the plugs are on top of the mottor and 3 of them are on the bottom side
The engines in Chevy Trackers are Suzuki engines, I would recommend NGK plugs.
the spark plugs are located in the front of the engine and rear, just follow the spark plug wires and you will find the spark plugs