My 93 is on top in engine compartment left side. maybe yours is too.
The oil pressure switch on a 1998 Chevy Blazer is on the side of the engine block. It is located above the oil filter.
oil filter is inside engine compartment front left fender by the head light
The 2001 Chevrolet Blazer doesn't have a cabin filter.
On the R/R of the engine. Answer: The oil filter on the 98 Blazer is in a remote location. On the lower splash cover there is a small door located on the driver side, behind the between the radiator and the engine. It is accessed from underneath the vehicle.
The oil pressure switch on a 1997 Chevy Blazer is located on the bottom of the engine, near the oil filter. It monitors the output and pressure of the oil pump.
The crankshaft sensor on a 1999 Chevy Blazer is located on the bottom of the engine, near the oil filter. It connects to the vehicle's computer and constantly updates it on the crankshaft's position.
The engine block coolant drain plug on 4.3 liter Chevy Blazer is located on the bottom of the engine, near the oil filter. It allows coolant to be completely drained from the block during maintenance.
behind the frunt bumper
On the fuel line going to the carburetor.
At the right rear of the engine. If it is a 4X4 it is located under hood on drivers side fender right behind headlight.
In General the Oil filter is on the left or right side of the engine. If you have the 5.7L V8 then it should be on the drivers side, back where the tranmission and block meet.
under the drivers side on the frame