Location of a 2002 Suburban Oil Pressure Gauge Sending Unit

The Suburban was an oddity in the automotive realm, as it was one of the few vehicles that two automakers -- Chevy and GMC -- offered with the exact same name. This was an oddity that had a deep heritage beginning with its release as a modified panel truck in 1936 and ending when GMC discontinued the Suburban in 2000. The 2002 Chevy Suburban came standard with a 5.3-liter V-8 engine, and proper oil pressure is an important part of keeping the engine running well. A small electrical sensor, the oil pressure sender, monitors the oil pressure and relays the information to a gauge on the dashboard. Replacing the oil pressure sender on the standard 2002 Suburban is a straightforward task -- once you find it.

Instructions

1

Open the Suburbans hood and remove the bolt from the center of the engine cover using a ratchet and socket. Pull the cover toward the front of the SUV to disengage it from the bracket and remove the cover from the engine compartment.

2

Find the oil pressure sender on the top of the rear, drivers side of the engine, near the drivers side valve cover.

3

Pull upward on the locking tab on the pressure senders wiring harness and unplug the harness. Remove the pressure sender using a ratchet and deep-well socket.

4

Apply thread sealer to the threads of the new oil pressure sender and allow the sealer to cure for the time specified by the sealers instructions. Hand-thread the sender into the engine and torque it to 15 foot-pounds using a torque wrench and deep-well socket.

5

Plug the wiring harness into the receptacle on the top of the new oil pressure sender.

6

Guide the rearmost part of the engine cover into the hooks on its bracket and pivot the front of the cover downward, aligning its bolt hole with that on the bracket. Tighten the engine covers retaining bolt to 89 inch-pounds using an inch-pound torque wrench and socket.