[quote=j cAT;6904924]
Quote:
Originally Posted by hoteldonaana
you did not mention what engine .. but since this is a 4X4 1500 the 5.3L engine is most likely it.
with a pressure guage you measure the fuel rail pressure. this is on the passenger side. with ignition turned on not cranking the pressure should rise to 60 psi or more then this pressure should not drop off rapidly after the 2 sec time out...when the engine starts it will drop slightly and fluctuate to the 52-58 psi area..if the pressure is below these amounts it will not start....
It has occured that pumps are not properly installed, that the pickup tube is messed up..also most use delphi pumps. If this is an airtex pump these are known defective units.
post back what you got then other items may need testing..
|
Hi
thank you very much for your help