the oil sending unit is located right above the oil filter.
Which sending unit? Oil or temperature? Or ?????
Just above the oil filter housing on the lower passenger side of the truck.
Which sending unit?
It is in the gas tank
I'd check all connections to the guage first, then if sure it is not a connection issue then it must be the sending unit, which is in the tank.
A 2002 S10 Blazer doesn't have throttle body injection (tbi).
how to change a oil sending unit on a Chevy vortec v 6
The oil sending unit on a 2001 Chevy Blazer is just above the oil filter. It is actually located on the diagonal to the oil filter to the upper left.
That is what goes in the very top of the fuel tank.
The oil sending unit on a 2002 wrx subaru is almost under the alternator. I suggest you remove the alternator and it is easier to remove the oil sending unit.
The oil sending unit is located on the back side of the engine on a 2002 Lancer. It is under the intake manifold.
Bad sending unit in the fuel tank.