the oil sending unit on your truck is located near the distrbutor on most Chevy engines for that year it look like a metal can with a wire connected to it that is the one for the gauge if its the light one then it has two wire connected to it some of these engines will have both right near the dis. some will have these senors near the oil filter.
In back of the engine, on top, drivers side, next to the distributor.
The fuel gauge on a 1985 Chevy Silverado will read full all the time if the sending unit is defective or the wire has come loose. When the tank is full, the sending unit normally shuts off which cause the gauge to read full.
A tan/white wire goes from the sending unit to the fuel gauge typically on a (example) 1985 Chevrolet Silverado 305 tbi.
Yes, it's in the fuel tank.
Need to know engine size.
on mine, I had to drop the gas tank.
Bad temperature sending unit? Bad gauge?
It is inside of the fuel tank and can be removed from the top of the tank.
It is right behind the distributor and screewed into the top of the engine block.
If you tell me the engine size, Then I'll tell you were it is.
It is inside of the fuel tank attached to the fuel pump sending unit.
The Oil Sending Unit on a 1988, 89, and 90 model Silverado is behind the driver side manifold. It is right above the oil filter. It is a canister that is bolted to a piece of tubing that leads to the motor.