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Username Post: 2003 Suburban oil pressure sending unit location        (Topic#225273)
plow509 
Forum Newbie
Posts: 21

Reg: 02-29-08
09-05-09 02:10 PM - Post#1766939    

Can anyone tell me where the oil pressure sending unit for a 2003 Suburban is located? 5.3 L engine.
Thanks

 
black95jimmy 
"7th Year" Silver Supporting Member
Posts: 8623
black95jimmy
Age: 63
Loc: Venice, FL
Reg: 01-05-02
09-05-09 05:58 PM - Post#1767018    
    In response to plow509



Back of the Intake Manifold, see brass adapter in photo.
82 Monte Carlo SC, 355 w/Vortec heads, roller rockers, 670 Street Avenger, Pypes true duals.
2000 Sub.5.3L 40 Gallons of gas @ $3.68/gal. bla bla bla.


 
plow509 
Forum Newbie
Posts: 21

Reg: 02-29-08
09-06-09 07:53 AM - Post#1767165    
    In response to black95jimmy

I need to check the oil pressure with a manual gauge. Just hook it up and thats it? I am assuming it will be setting of a warning chime at least. Am I correct? Thanks for the pics also.

 
black95jimmy 
"7th Year" Silver Supporting Member
Posts: 8623
black95jimmy
Age: 63
Loc: Venice, FL
Reg: 01-05-02
09-06-09 09:34 AM - Post#1767195    
    In response to plow509



Better picture.



With all the junk in the way.
82 Monte Carlo SC, 355 w/Vortec heads, roller rockers, 670 Street Avenger, Pypes true duals.
2000 Sub.5.3L 40 Gallons of gas @ $3.68/gal. bla bla bla.


 
mvillani 
Forum Newbie
Posts: 6

Reg: 05-01-12
05-01-12 09:55 AM - Post#2221120    
    In response to black95jimmy

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, Ā¾ā€¯ 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:




 
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