Where is the oil sending unit located on a 2003 Chevy Tahoe 5.3 engine

It is located on the rear top of the engine, behind the intake manifold.

5.3 liter? It is located on the very back of the engine closest to the firewall. It will be to the right and below the I take plenum ( as your standing in front of the vehicle). It is almost impossible to see but you will be able to feel around back there and find it. You will need a oil pressure sending unit socket to remove and replace it.

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On Chevrolet Motors, it depends on which engine you have and that will vary the location... Start by looking close to the Oil Filter. On the 5.7 Liter engines, it is on the Back side of the Engine, On some of the smaller, it si located below the Exhaust.

It is located at the top rear of the engine near the transmission bell housing (Real fun to get to). You will need a special deep oil sending unit socket if you are planning to replace it.

here is the fluid capacity for your tahoe

Application
Specification
Metric
English
Pan Removal - Approximate Capacity
4.7 liters
5 quarts
Overhaul - Approximate Capacity
10.6 liters
11 quarts

You probably need a oil pressure sending unit it is located at the back of the engine and is a high failure

Not sure what engine you have, most 4.8, 5.3, 6.0s are WAAAY back in the middle of the engine facing the drivers side, very difficult to get to.

Hi there;

Your looking foer the oil pressure sensor on the 2004 8.1L.
You will find it located directly behind the EGR valve threaded into the block just to the drivers side of the center bolt for the transmission to block connection.

Thanks
Farrout!

it is in the valley of engine behind intake.at back of engine you can get it out with a thin walled oil sender socket.

it is behind intake in valley of engine at back can be removed without intake removal. have to use a thin walled oil sender socket