New Guy With Oil Pressure From Bad To Worse!

[SnowDrifter]

I know what the spec sheet is. My statement still stands

 

[jcb2]

JB05Yukon,
When you replaced the oil pressure sensor, did you also replace the screen under it? I found mine gunked-up causing low pressure readings. I really wish they would automatically package the screen with the new sender so rookie’s like me would know about it. I learned the hard way whe my new sender showed good pressure on start but then drifting down to near zero.

See the forum”oil pressure” got more discussion on these issues. I commend the other writers on this forum for their expertise and experience. But now that you got oil flowing, the pressure issue could be just the simple screen.

Best of luck with with it!

 

[jcb2]

By the way, I drive an ‘07 Yukon with a 5.3L having 183K miles. After flushing the oil system, my oil pressure now always reads 45-65.

 

[JB05Yukon]

By the way, I drive an ‘07 Yukon with a 5.3L having 183K miles. After flushing the oil system, my oil pressure now always reads 45-65.

Thanks JCB2. I actually removed the new sender yesterday to check for this but there doesn't appear to be a screen in my 2005. I think I read somewhere that these were introduced in the 2007 model?

 

[jcb2]

Mine was really clogged so there is definitely a need for it. If I were you, I would make sure before ignoring it. After the sensor is removed, poke a pick tool down in the opening and wiggle it to see if you feel it. If it’s there, the pick will “bite” it and you can pull it out. Any auto supply store can tell you if it has this screen or not. I really wish I knew about it before I first installed the new sensor. As you know, it’s a challenge getting access to it.

 

[JB05Yukon]

Mine was really clogged so there is definitely a need for it. If I were you, I would make sure before ignoring it. After the sensor is removed, poke a pick tool down in the opening and wiggle it to see if you feel it. If it’s there, the pick will “bite” it and you can pull it out. Any auto supply store can tell you if it has this screen or not. I really wish I knew about it before I first installed the new sensor. As you know, it’s a challenge getting access to it.

I’m getting to be a dab hand at removing the sensor. Removed, checked for screen, and replaced all in the space of halftime during saints/rams and with time enough for a beer after! No screen though, and I was hoping for one. It seems the cause of my low(ish) pressure is mechanical.

 

[SnowDrifter]

The screen wasn't implemented until the NNBS. Not sure if it started with cylinder deactivation or before.

Yeah the sensor is easy unless you have huge hands. I think officially you're supposed to remove the intake manifold. But TBH all you need to do is reach back there with an extension and bam you're done

 

[jcb2]

JB05Yukon, SnowDrifter,

You guys are apparently better mechanics than I am. I've replaced the sensor three times on a 5.3L engine and every time gets easier but it's still a PIA job. I don't remove the intake but rather struggle to reach behind it.

Once on trying to install the new sensor, it slipped through my fingers and disappeared from view. It took me hours to find it and retrieve it! They're not magnetic so my retrieving tool was worthless. The only way I could get it was to vacuum it out of it's nesting spot using a small diameter hose. It was a good learning experience.

 

[sonic_the_hedgeh]

IMO 5w30 is out dated just as is 10w30.

Will give an in depth explanation if interested when I get back to the computer

I would like to add I have an 04 Yukon Denali with over 360,000 km's and I Ru. 5w-50 synthetic in winter. - 30 celcius it starts fine without being plugged in. 0w30 I don't run because it is too thin.

This summer I am going to a 15w40 or thicker. Used to have a 1987 Chrysler Shelby Daytona that called for 5w30, when I ran in the summer on 20w50 it was terrific fuel economy.

Just saying. To eahx their own though.

Sent from my CLT-L04 using Tapatalk

 

[SnowDrifter]

I would like to add I have an 04 Yukon Denali with over 360,000 km's and I Ru. 5w-50 synthetic in winter. - 30 celcius it starts fine without being plugged in. 0w30 I don't run because it is too thin.

This summer I am going to a 15w40 or thicker. Used to have a 1987 Chrysler Shelby Daytona that called for 5w30, when I ran in the summer on 20w50 it was terrific fuel economy.

Just saying. To eahx their own though.

Sent from my CLT-L04 using Tapatalk

Curious why the step to thicker oil and how you determined that was the appropriate grade to run?