Assuming it has a 4.3 engine, the oil sending unit is located under the hood, in back of engine, drivers side, next to the distributor. It is difficult to see and get to. Removing the distributor makes it accessible.
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.
no
in the trunk
Where is the oil sending unit located on the 2001 Chevy 43. vortec engine?
Yes, the doors from a 98 Chevy Blazer will fit a 2001 Chevy Blazer with a little moderation.
It is located inside the fuel tank along with the fuel pump. The fuel tank must be dropped to gain access to it.
In the fuel tank
The 2001 Chevrolet Blazer doesn't have a cabin filter.
Top, rear drivers side of engine, below the distributor. Removing the distributor gives you room to R&R the oil pressure sending unit.
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