Rear of the engine block.
it is next to the coils at the rear of the engin between the tranmission and the engin
The thermostat is on the water pump.(the left side in the front of the car) 2 screws to take out that's all
its the sensor in the tube going in to the throttle body from the air cleaner
22L (liters) is 5.81 US gallons.
97 chev cav fuel filter is located in under rear passenger side right by the wheel axle.
looking at the rear of the motor from under the car from left to right 1/3 2/4
turn the bulb clockwise until it pops out unclip it put in new one and twist it back in tadaaaaa!
with the rocker cover removed, try pushing down on the pushrod end of the rocker arm. if it moves ,the lifter is bad
lr stands for long rifle(uses a bullet) I dont know where you got 22l from
the t.p.s is right across from the throttle cable on the throttle body the when u find it u will see how to take it off
there is a sensor in the bottom of the coolant bottle, change this and you should be o.k. tap the sensor with a screw driver it will go out uts just stuck