Engine Oil Pressure Sensor

[tahoe7689]

My EOP sensor is broken and I bought a new one, but I cant find where it is. I have only found general locations suggested by google searches. I have a 2003 tahoe 5.3L. If someone has done this can they also give a quick how to, because my shop manual doesn't even say anything about it. Thanks

 

[Noto81]

My EOP sensor is broken and I bought a new one, but I cant find where it is. I have only found general locations suggested by google searches. I have a 2003 tahoe 5.3L. If someone has done this can they also give a quick how to, because my shop manual doesn't even say anything about it. Thanks

Do a search on this forum for "oil pressure sending unit". I asked the same question and a diagram was posted. But its behind the intake. You need a mirror to see it unless you take the hood off.

 

[HMFDZ28]

Its behind the intake manifold, top of the block, right side I believe.

 

[mvillani]

Hello all. I just replaced the oil pressure sensor on my wife's 2006 Yukon (5.3 engine). I was able to replace with only removing the plastic intake cover and the air intake (from air cleaner to throttle body). This required loosening three 5/16 screws (one on intake cover and two clamps on air intake) and four screws (air cleaner cover). These were removed to ensure they weren't cracked as I laid across engine to reach back of engine on the drivers side (right side) to remove the sensor. Location is directly under firewall before back of engine meets the transmission. I used a 3/4" drive, two 6" 3/4" extensions, ¾” swivel, and a Autozone Oil pressure sensor socket #25254 to remove the sensor. I will try and add pictures for location and to show what I removed. Took 15min max. Hopefully this will help!
Pictures as promised:
Plastic intake cover removed (one 5/16 bolt):

Air intake (from air cleaner to throttle body - two 5/16 clamp screws and 4 air cleaner screws:


Oil sensor socket from Autozone:


Driver, extensions, swivel, and socket:


Location of sensor when laying on top of engine towards windshield:


Another view:

 

[afpj]

mvillani,
You got to that sending unit WITHOUT taking off the intake manifold? Wow, I can barely see that sucker with the manifold still on. Congrats.