Tahoe LT low oil pressure?

[Geotrash]

Do you need to add more oil when using a larger filter?

Nope.

 

[OR VietVet]

Do you need to add more oil when using a larger filter?

Anytime you use a bigger filter you need to add oil accordingly. I have a longer filter I use for my rig because it has more filter element for my system. I have to add about 1/4 quart for the difference. Does it really mean anything for that extra filter size difference for the oil level? Maybe not but I just have to have it right on the money for the oil level.

 

[Geotrash]

Anytime you use a bigger filter you need to add oil accordingly. I have a longer filter I use for my rig because it has more filter element for my system. I have to add about 1/4 quart for the difference. Does it really mean anything for that extra filter size difference for the oil level? Maybe not but I just have to have it right on the money for the oil level.

Technically, you're correct but in practice I haven't needed to. Mine is right up at the full line on the dipstick with the larger filter and the usual 6 quarts. In other words, the difference is so little on the dipstick as makes no difference.

 

[iboughtatahoe23]

Based on your pics it's 2007-2014. What is the year ans miles? If you're closer to the earlier years, I agree with @OR VietVet and @Geotrash in what they said. I'd also add if it's older, high miles, or hot climate you might be in the "I need a new oil pump o-ring club."

High miles. 165k and I live in Midwest. Usually cold a lot. Haven’t changed oil since got it from dealership. They said they did. But I doubt it. I don’t really know how to read dipsticks. It looks fine to me from just looking at it. No leaking underneath.

 

[Trey Hardy]

Normally I’m between 20-40 but lately it seems to be dropping? Oil level looks good but it’s reading low lately. At 17 PSI

I’ve had to change 3 oil sensor screens on my Tahoe and 2 for friends it gums up and would throw low oil pressure warnings
It’s located on the back driver side of the intake manifold and it’s a pita to do it the first time until you get it figured out
Also got to do it all by feel as you can’t see back there

 

[Kenney]

That's an expensive parts cannon they have there. A proper diagnosis using established and well-documented methods would have been way cheaper. Hope they can get you squared away.

Thanks. Yeah they said they replaced the ECM so lets see if they give me a call today

 

[MidwestMike]

2014 with about 90k on it. Replaced the sensor and screen 2 years ago, had the issue again.
Ordered the parts and then did an oil change while waiting.
I still can't believe it but that oil change was the fix the second time around.
(I never have easy fixes...)

 

[FrenchUSFan]

I have got same problem and solve it by changing oil (Valvoline 5W30 high mileage maxlife) and filter (ACDelco UPF48R). Now I have 25PSI at idle hot and 35-40PSI while driving