LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
GMC
>>
1990
>>
Forward Control 3.9 L
>>
Repair and Diagnosis
>>
Engine Performance
>>
Engine Controls - Specifications
>>
Fuel System
>>
Fuel Pump
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Fuel Pump
FUEL PUMP PERFORMANCE
Application
psi (kg/cm
2
)
6.2L Diesel (VIN C)
8-12 (.5-.8)
All Others
9-13 (.63-.91)