High oil pressure
Thread Starter
Advanced
Joined: Apr 2009
Posts: 52
Likes: 0
From: San Antonio TX
High oil pressure
I'm a newbie and my 99 is reading 129PSI at idle. Cars running fine. I'm assuming the oil pressure sending unit has gone out. How on earth do I replace it providing thats all it is? Any pics would be great. Thanks in advance for any help!
Instructor
Joined: Aug 2009
Posts: 147
Likes: 0
From: Georgia
Make sure you get a brass sending unit not the aluminums. You can get one from advance. intake manifold has to be taken off but, there are alternate ways. Do a search on here and choose which would be the best route for you. If you choose to take off the intake manifold thats what i would recomend you can clean out the all that gunk under there and do your knock sensors too. I think there is also a knock sensor mod you can do too. Good luck
Melting Slicks
Joined: Mar 2008
Posts: 2,453
Likes: 346
From: SC
I just replaced mine yesterday. I opted for the cutting the hole in the cowl method. I know some of you don't like this method but it worked well for me. I had no problem and got it sealed up nicely with aluminum tape under the hole, replaced the cut out and sealed it with silicone before duct taping the top. One thing I did was before sticking the duct tape I sprayed a fine coat of spray adhesive to help the tape adhere better. Just a thought. Nice to have the gauge back. And by the way I was able to get the brass one at Advance auto.
Racer
Joined: Jan 2009
Posts: 272
Likes: 0
From: Roseland NJ
Dont go to the dealer!!
They want $440 to replace the unit with the same ****y unit...
Either relocate the unit...buy the right one, Brass, and start taking the fuel rails off and intake manifold off..or cut the whole in the cowl.
There are alot of good "how tos" on this topic on the forum.
The other option is...do nothing.
One guy said he drove around for 8 years without the sensor..
Good luck!
M
Either relocate the unit...buy the right one, Brass, and start taking the fuel rails off and intake manifold off..or cut the whole in the cowl.
There are alot of good "how tos" on this topic on the forum.
The other option is...do nothing.
One guy said he drove around for 8 years without the sensor..
Good luck!
M
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
One of the primary failures of the sender is oil leaking through the internals to and gets into the electronic portion of the sender. Oil then will start leaking out of the connector and onto the engine. You don't need a fire, so fix it sooner than later. As stated several times, don't waste your time and money on an alluminum one, rather, brass only.
Intermediate
Joined: Oct 2009
Posts: 32
Likes: 1
From: Dallas Tx
i just got the same problem this morning with my 2002, reading is 130 psi. Anyone who could post a picture showing the location of the SENDER in an 02 will be greatly appreciated.
....picture will help me decide where to cut or make a hole if i opt to "cutting the COWL(?)".
....picture will help me decide where to cut or make a hole if i opt to "cutting the COWL(?)".
Last edited by marc5; Oct 30, 2009 at 11:03 PM.
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Intermediate
Joined: Oct 2009
Posts: 32
Likes: 1
From: Dallas Tx
will definitely not resort to cowl cutting, just bear the brunt of paying the labor of relocating it... but have to get this product first, check this link...
http://www.totalperformanceengineeri...roducts_id=840
http://www.totalperformanceengineeri...roducts_id=840
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
I see a lot of people recommend the brass sending unit. What has the metal the unit is made out of got to do with it? These are electronic sending units. Wouldn't the electronics have more to do with a good verses a bad unit compared to what metal it is made out of?
Tech Contributor
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
The proven fact is that the brass sensors DO last longer, for whatever the reason is.
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
So, all I'm asking is where is this “proven fact”. Can you point me to a source of this data?
I could believe that the aluminum unit might be more likely to be damaged during installation than the brass from over torquing, but I don't buy the material choice has anything to do with the failure because of the environment the sensor is exposed.
Last edited by Eric D; Oct 31, 2009 at 08:03 AM.
Melting Slicks
Joined: Mar 2008
Posts: 2,453
Likes: 346
From: SC
i just got the same problem this morning with my 2002, reading is 130 psi. Anyone who could post a picture showing the location of the SENDER in an 02 will be greatly appreciated.
....picture will help me decide where to cut or make a hole if i opt to "cutting the COWL(?)".
....picture will help me decide where to cut or make a hole if i opt to "cutting the COWL(?)".
Tech Contributor
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
An original brass sensor still working, (and also not leaking) after nearly nine years of service, is all the proof that I'll ever need Eric.
Melting Slicks
Joined: Feb 2007
Posts: 3,266
Likes: 8
From: Indian Rocks Beach FL
St. Jude Donor '08-'09-'10
But the originals do fail, and often. Otherwise this would not be such a popular topic, so popular it rates a sticky at the top of the page. Also, I don't see how one sensor of a certain material not failing means another certainly will. Your logic escapes me.
Tech Contributor
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Melting Slicks
Joined: Feb 2007
Posts: 3,266
Likes: 8
From: Indian Rocks Beach FL
St. Jude Donor '08-'09-'10
My original was brass. It failed. Actually I'm not sure that any originals were aluminum. Do you have any statistics to support your assertion that the vast majority of sensors that have failed were aluminum?
Last edited by Mark C5; Oct 31, 2009 at 05:58 PM.
Tech Contributor
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Here's one that you can review, and then draw your own conclusions.
http://forums.corvetteforum.com/c5-t...gain-pics.html
Melting Slicks
Joined: Feb 2007
Posts: 3,266
Likes: 8
From: Indian Rocks Beach FL
St. Jude Donor '08-'09-'10
There have been many Forum discussions on this topic.
Here's one that you can review, and then draw your own conclusions.
http://forums.corvetteforum.com/c5-t...gain-pics.html
Here's one that you can review, and then draw your own conclusions.
http://forums.corvetteforum.com/c5-t...gain-pics.html
From his post "The first time I replaced it 3 mo's ago, I noted my old original sensor was made of heavy brass."
