1998 Chevy Suburban NO FUEL PRESSURE to start engine

Your oil pressure sending unit is tied into your fuel pump relay feed wire. Try changing the oil pressure sending unit--however, if the sending unit is good and there realy is a low or no oil pressure condition, then your problem may be your oil pump--a blocked oil port inside the motor--a bocked oil pressure sending unit port--or something of that sort..let me know how you make out..

[quote:ecf8d799d0="pear69"]Your oil pressure sending unit is tied into your fuel pump relay feed wire. Try changing the oil pressure sending unit--however, if the sending unit is good and there realy is a low or no oil pressure condition, then your problem may be your oil pump--a blocked oil port inside the motor--a bocked oil pressure sending unit port--or something of that sort..let me know how you make out..[/quote:ecf8d799d0]

The pump finally did give out and I am having it changed. Your comments were a big help..

Cheers:
Ron

  Ron, being that you are changing the fuel pump, have the chassy harness fuel pump electrical connector changed. It is the plug that plugs into the fuel pump.  I have had so many problems with these I cannot even began to count.   The original connectors fail when you un plug and then plug them back in. The internal electrical prongs spring open causing a loose connection. This may not be a problem at first, but I'll bet anything that in a few months your engine will not start; and you will blame the new fuel pump.  This can also cause a fire because of the loose connection arcing.  It is not worth taking a chance with this connector considering all the work and expence envolved.
The replacement connector has to be spliced into the chassy harness and has 4 wires on it...