Does anyone know where the fuel pressure regulator is on the 6.0L engine? On my old silverado 5.3L it was located on the right side fuel rail.

I called the parts department at my local GMC dealer and they didn't know where it was located. I would assume it has one somewhere.

Over the weekend my Denali started having problems starting but runs fine once it is started.

Thanks,
Ycats

I would get into more diagnosis here, get a press. gage on it and check if the press drops off radically after shutting it off and do you have 60-65 key on not running?

I talked with two other dealers today and they both said that the regulator is in the gas tank with the sending unit on the 6.0 Liter.

Ycats

Ok, so how do you know it is a problem, still not answered?

It is exhibiting the same problems my 5.3L Silverado had when the regulator went bad. Plus besides the fuel filter it is one of the cheapest parts to replace.

With over $100/hr for GM labor I want to make sure I try to replace the simple/cheap parts before we get into replacing the fuel pump.