Operation CHARM
: Car repair manuals for everyone.
Home
>>
GMC Truck
>>
2003
>>
Sierra Denali AWD V8-6.0L VIN N
>>
Repair and Diagnosis
>>
Specifications
>>
Pressure, Vacuum and Temperature Specifications
>>
Fuel Pump
Fuel Pump
FUEL PRESSURE
1.
Command the fuel pump ON with a scan tool.
2.
Observe the
fuel pressure
gage with the fuel pump commanded ON.
VIN Z
335-375 (48-54 psi)
Except VIN Z
385-425 kPa (55-62 psi)