What it the correct fuel pressure for my Hoe Please !

[jrplz]

My truck is acting up like it wants to stall


checked my fuel pressure !


key on 52

Motor running 46

motor running
disconect the
air line to the fuel pressure reg and get 58

also the needle on the gauge fluctiuates 1 to 2 back and forth.
example from 1 to 2 back and forth fast


and yes looked Google and chilton book ! getting different answers


2003 5.3 tahoe z71 vin letter t

 

[03tahoe2012]

its a non flex guys

 

[jrplz]

its a non flex guys

Not flex fuel

 

[jrplz]

BTW I found the problem. If you guys did not know our trucks come with an adjustable (fuel pressure regulator)

 

[chauncey0337]

So, what did you do, replace it or adjust it?

 

[jrplz]

Put fuel pressure gauge (tool) and stared the truck up, two turns (tight) and problem solved got the info from
link

http://www.performancetrucks.net/forums/gm-general-discussion-130/low-fuel-pressure-491888/

 

[chauncey0337]

Good to know. Thanks for posting the results. Might help somebody in the same situation.

 

[jrplz]

Also please be aware of the aftermarket fuel pressure regulators !

I was looking around and some are rated at 50psi and the Oem is 56psi

Did Alot of looking around ! hope this helps some one

link to the regulators specs

http://www.napaonline.com/Catalog/CatalogItemCompare.aspx