Location for analog oil pressure gauge plug

[scomis]

Can someone please tell me / show me photos of exactly where to screw in a HF analog oil pressure gauge to check against my dash gauge? It is a 2009 Tahoe 5.3 4wd. Hoping to leave the new sending unit in so I can check if the pressures it shows are accurate.

 

[donjetman]

There is an 8mm allen plug on the driver side of the block, half way between the head and oil pan next to the timing cover.

 

[Geotrash]

There is an 8mm allen plug on the driver side of the block, half way between the head and oil pan next to the timing cover.

This. ^^^

And this may help:

Black LS Oil Pressure M16 to 1/8npt Adapter - Billet Aluminum Turbo Feed or Oil Pressure Gauge Port Adapter LS1 LS2 LS3 LS6 LS7 LS 4.8 5.3 5.7 6.0 6.2

This billet aluminum 6061 adapter is to set up an Oil pressure gauge electrical or mechanical for LS1, LS2, LS3, LS6, LS7 engines. This adapter screws into the top of the block behind the intake manifold and adapts the port to a universal 1/8" pipe fitting. This adapter can be used with...

www.michiganmotorsports.com

 

[strutaeng]

I wonder if that plug is actually accessible with the PS/alternator bracket in place?

I don't remember now?

 

[ScottyBoy]

I wonder if that plug is actually accessible with the PS/alternator bracket in place?

I don't remember now?

Yes, it is. I connected to that port on mine without moving the power steering pump or bracket. I can't remember EXACTLY, (it's been a few years since I did this) but l believe I had to use a Flex head ratchet or something. All I remember was the 8mm bit socket on a regular ratchet would not fit, because the power steering bracket was in the way and the ratchet was hitting that bracket. After I grabbed the Flex head ratchet, I could actually turn the socket without the ratchet hitting the pwr steering pump bracket. If you have a cordless ratchet or stubby ratchet, that might work as well.