1990 Ford F350 FUEL PRESSURE DROP WHILE ACCELERATING

1990 FORD F-350
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DOHERTYDON
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Engine Mechanical problem
1990 Ford F350 V8 Four Wheel Drive Automatic
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PRESSURE DROPS WHILE ACCELERATED I HAVE CHANGED PUMP AND PRESSURE REGULATOR I CAN'T FIGURE OUT WHAT ELSE IT COULD BE.

PRESSURE IS 40 ON IDLE AND DROPS WHEN ACCELERATED.

MOTOR IS RUNNING RICH.
Apr 27, 2008 at 10:19 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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