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Cadillac
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1990
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DeVille V8-273 4.5L
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Repair and Diagnosis
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Powertrain Management
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Tune-up and Engine Performance Checks
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Fuel Pressure
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Specifications
Fuel Pressure: Specifications
FUEL PRESSURE
With ignition "ON," and engine "OFF", fuel pressure should maintain
(40-50 psi).
For additional fuel pressure testing,
Chart A-4 Static Fuel Pressure Diagnosis