on at 1999 GMC Suburban 4x4 k2500, where is the fuel pressure regulator? what

[Rick]

does it look like?
Thanks, what does the upper air intake plenum look like?

 

[Kenny D]

It is mounted to the injector body assembly under the upper intake. Looks like this:
http://info.rockauto.com/getimage/getimage.php?imagekey=47064&imageurl=http%3A//info.rockauto.com/SMP/PR217_FULL.jpg

To change it you will need to remove the upper air intake plenum.


Rick,

You have a 2-piece intake manifold. The black upper portion is made of a composite material and lower portion is cast-aluminum. The black upper portion of the intake manifold is the upper air intake plenum. That is what needs to be removed to access the fuel pressure regulator. Here is an illustration of the lower intake with the upper intake plenum removed (note #2 in the illustration, the fuel pressure regulator mounted on the end of injector meter body assembly):
http://www.alldatadiy.com/alldata/AFI~G~C32422~R0~OB0~P3R0H~N/0/41746505/41746506/41746536/41746537/34853741/34857029/34860053/42095776/121068352/98978472/101391437/101391441

 

[Wes]

A repair manual will help you identify the plenum or upper intake. The fuel metering valve is $350-400 plus gaskets. The new one is different than the original. I strongly suggest having a shop do this work.