Hello All,
I have a 1999 K1500 Suburban, That I am having fuel pressure issues with. If the fuel rail is bled down, the fuel pressure does not come up, until after I crank it. I am not hearing the fuel pump, when I first put the key to run, prior to starting. I know there is a circuit that runs off the oil pressure switch, but I know little else. There has got to be another circuit, that when the truck ignition key is first placed to run, before the engine turns, causes the fuel rail to pressurize to the 60-66 psi that the book keeps talking about.
I got to get this thing going. My wife's mother just passed, and the other cars I own are really not worthy to be in the funeral procession.
Any help would be greatly appreciated. I replaced the fuel filter and pump about a year ago.
I can actually get the suburban running, if I "prime" the air horn with about a 1/4 cup of fuel, but would hate to take it on the road this way. Friend has a 1998 Chevy truck. We swapped fuel relays, under the hood, just to see if this would help - No Joy.
Thanks in advance for any info,
Scott