Help With Oil Sensor Please!!
Thread Starter
Melting Slicks
Joined: Sep 2005
Posts: 2,521
Likes: 146
From: Watertown CT
Help With Oil Sensor Please!!
Just a quick question for those of you who might know. Where is the location of the oil pressure sensor? How long will this take to change and basically what does it entail? Thanks for the help, Dan.
Instructor
Joined: Oct 2004
Posts: 134
Likes: 0
From: Arlington Texas
Common problem. The BRILLIANT engineers at GM put the sensor underneath the intake at the back of the engine. I'm replacing mine, but it is during a complete engine swap for a forged motor. I would imagine that it is around a 4 hour job, if your handy with a wrench.
Racer
Joined: Mar 2003
Posts: 440
Likes: 7
From: Willow Park Texas
I replaced mine. Took about 2 hours. You have to take the intake manifold off to get to it. You can leave the fuel lines connect as you just have to move it forward a little to get to the sensor. When you buy the sensor, get the special socket that it takes to put it in and have a torque wrench that will do in/lbs. I for got what the torque was on the manifold but it was not much. I reused the manifold O-rings on mine as they were in good shape. I think a set of those is about $90. I got the oil pressure sender for the local AC/Delco guy. I think is was about $30.
Burning Brakes
Joined: Oct 2004
Posts: 925
Likes: 0
From: Johnston, Iowa
Originally Posted by RobertEarl
I replaced mine. Took about 2 hours. You have to take the intake manifold off to get to it. You can leave the fuel lines connect as you just have to move it forward a little to get to the sensor. When you buy the sensor, get the special socket that it takes to put it in and have a torque wrench that will do in/lbs. I for got what the torque was on the manifold but it was not much. I reused the manifold O-rings on mine as they were in good shape. I got the oil pressure sender for the local AC/Delco guy. I think is was about $30.
$30 for the sensor and the time to remove/install the intake...
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Becareful about just sliding the intake forward. Sometimes there is dirt and grit that collects under the manifold and between each intake opening!!
BC
BC
Le Mans Master
Joined: May 2005
Posts: 6,366
Likes: 249
From: Fort Lauderdale, Florida
Definetely a good suggestion to be careful about dirt when moving the intake manifold. When I changed my sensor I was amazed at the amount of dirt that gets between the intake and the valley cover. There were leaves in there that I couldn't imagine how they got in. With the manifold off it's a great opportunity to do some serious cleaning in the engine compartment.
Melting Slicks
Joined: Oct 2003
Posts: 2,183
Likes: 5
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Melting Slicks
Joined: Oct 2003
Posts: 2,183
Likes: 5
Le Mans Master
Joined: May 2005
Posts: 6,366
Likes: 249
From: Fort Lauderdale, Florida
When I had the sensor go on my previous C5 I couldn't believe what a dumb place to put the sensor. They could have relocated it to a more accessible place. It's still in the same place as previous generation small blocks. On my street rod's 350 it's right next to the distributor in the same location on the rear of the block. However, it would probably take less than 5 minutes to change it and secondly, its never had to be replaced.
Race Director
Joined: Jul 2000
Posts: 16,509
Likes: 2,399
From: Out Where the Buses Don't Run, Eglin AFB/ Niceville FL
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2022 Corvette of the Year Finalist -- Modified
2021 C6 of the Year Winner - Modified
2020 C7 of the Year Finalist -- Modified
2020 C6 of the Year Finalist - Modified
What are the symptoms? I have a 99 coupe that reads zero with the key off and pegged past 80 once it's started. Is the sensor causing this?
Pro
Joined: Oct 2004
Posts: 538
Likes: 0
From: Edmond Ok
Originally Posted by 3XBlack
What are the symptoms? I have a 99 coupe that reads zero with the key off and pegged past 80 once it's started. Is the sensor causing this?
Instructor
Joined: May 2002
Posts: 187
Likes: 0
From: Cumming Georgia
Speedy,
If you haven't already replaced your sensor, the guys have given you good advise about how to do it. I would just emphasize the comment about the little air conditional vacuum line that comes off the rear side of the intake. It will pull out of the elbow fitting when you slide the intake forward and if you are blessed with short fingers it will take a small act of congress to get the thing reconnected correctly. As mentioned by others, somone with long skinny fingers or a extra long pair of needle nose pliars are essential things to have when you get around to reassembly. If you can hear the dreaded hissing sound when you restart your engine, you didn't get it plugged back in correctly and your air conditioning will not function properly.
If you haven't already replaced your sensor, the guys have given you good advise about how to do it. I would just emphasize the comment about the little air conditional vacuum line that comes off the rear side of the intake. It will pull out of the elbow fitting when you slide the intake forward and if you are blessed with short fingers it will take a small act of congress to get the thing reconnected correctly. As mentioned by others, somone with long skinny fingers or a extra long pair of needle nose pliars are essential things to have when you get around to reassembly. If you can hear the dreaded hissing sound when you restart your engine, you didn't get it plugged back in correctly and your air conditioning will not function properly.