I need to know what the fuel pressure should be for a 4.3 l engine
The 3.3L engine fuel system operates at 55 psi (379 kPa). With the engine idling and the manifold vacuum applied to the regulator, the system operates at approximately 46 psi (317 kPa). Without vacuum applied to the regulator, the 3.5L engine fuel system operates at 48 psi (331 kPa). With the engine idling and the manifold vacuum applied to the regulator, the system operates at approximately 39 psi (269 kPa).---------------------------------------------------------------------------------
Renault CAN Clip
SOURCE: need to know the fuel pressure for 1985 F 350 7.5 eng. 4 bbl. hol
Most carbs need any where from 4-6 psi
SOURCE: i need to know the fuel pressure on oo isuzo
FUEL PRESSURE IS 48 - 55 PSI. IF FUEL PRESSURE LOW REPLACE FUEL FILTER FIRST BEFORE BUYING A NEW FUEL PUMP.
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