Oil Pressure Sensor?

[JonnyTahoe]

Concur, I have used them in many applications. The one I took off was leaking at the front, and there was RTV there. I researched this a bunch, and Felpro recommends no RTV. I installed a new one with no RTV and it still leaked.

I believe the felpro gasket is silicone, but I can't confirm this. And getting things to stick to silicone can be difficult. It could be the original one that was leaking did not use a silicone based RTV, and that was the issue.

I also saw a lot of recommendations that the OEM one is better in this particular application. And it may be that people have had better luck as it appears to be a nitrile, or non silicone rubber. So I'm hopeful that the third time is the charm, this time using the OEM gasket.

Replaced my oil pan gasket a few years ago with a Felpro; OS 30693R included was a instruction sheet that clearly said not to use any type of sealant on the gasket. Most people are using sealant in the corners which makes perfect sense I did not. Cleaning the engine mating surface properly is probably most important as is the oil pan surface. Now I see why your replacing the front cover. The Gasket is not the reason for the leak it is the installation process or something else. Hopefully a new front cover is the fix.

 

[orange57]

Yep, it has a doorman plastic cover on there. I also read that those can be problematic. So shiny aluminum it is now.

Also doing the CPS, mainly for the new seal.

Hopefully I can get this all sealed up and be good for a while.

 

[JonnyTahoe]

Yep, it has a doorman plastic cover on there. I also read that those can be problematic. So shiny aluminum it is now.

Also doing the CPS, mainly for the new seal.

Hopefully I can get this all sealed up and be good for a while.

Never knew they made plastic front covers. Let us know how it works out.

 

[orange57]

The Doorman one is. I'll snap a pic when it comes off.

This one is going on.

 

[Jason in DLH]

Like WJBurken said ...my oil pressure sensor is located near the firewall at the rear of the engine more on the driver side. But I have a 2007 Yukon.

 

[Plimbob]

FWIW - I have a 07 Tahoe that the level sensor went bad and it would send very intermittent warning of low oil level - stop vehicle. The pressure was normal. I figured it was either the oil pick-up in the pan or the level sensor. Considering I have 295,000 on it it could have been both. I started with the easiest fix, replacing the oil level sensor. It is located on the passenger side on the 07 5.3L. Easy fix, stop the warning messages.

 

[orange57]

Replaced my oil pan gasket a few years ago with a Felpro; OS 30693R included was a instruction sheet that clearly said not to use any type of sealant on the gasket. Most people are using sealant in the corners which makes perfect sense I did not. Cleaning the engine mating surface properly is probably most important as is the oil pan surface. Now I see why your replacing the front cover. The Gasket is not the reason for the leak it is the installation process or something else. Hopefully a new front cover is the fix.

After taking the front cover off, I suspect it is the issue. The gasket on the plastic doorman cover is a small o-ring. The new cover comes with a paper gasket that covers the entire surface between the cover and the block. The plastic cover, that o-ring does not cover that full surface so you essentially have a small area that isn't sealed right in the corner. So this cover may work ok if you are using the sealant in the corners. But without that, I don't think the Felpro gasket would really seal in that area.

I have used Felpro before, I think they make a really good product, it's just twice now it hasn't worked, and it may be no fault of their own. I suspect that if I were to re-install the Felpro with the aluminum cover it may be fine this go around. But, I'm a little leery to go that route with two previous issues. And the original AC Delco gasket did a good job. I'm optimistic that the third time will be the charm