1991 Ford F250 runs rough

1991 FORD F-250
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JOE2705
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Engine Performance problem
1991 Ford F250 V8 Two Wheel Drive Automatic
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Hello hope you can help?
Engine is schacking like crazy and sounds like its sucking realy hard for air.replaced faulty ECM relay and fuelfilter but still not better.Could it be the Fuelpump?or a Valve or sensor for the Emissioncontrol?
would appreciate any help.
Jun 5, 2008 at 1:36 AM
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LEGITIMATE007
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first thing check for vacuum leaks , check all hoses for disconnects, and holes or cracks in the hoses
Jun 5, 2008 at 5:36 AM
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JOE2705
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checked all hoses but couldnt find nothing wrong.my wife is getting me an fuelpressure tester.checked codes again and showed code 95(fuelpump circuit PCM to ground).where do i look for that problem???
Jun 5, 2008 at 6:23 PM
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LEGITIMATE007
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Im gonna send you a video that will show you everything to do. very easily .
Jun 5, 2008 at 9:40 PM
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LEGITIMATE007
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check this video out


https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm
Jun 5, 2008 at 9:41 PM
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JOE2705
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thanks for the video.
pressure is according to specs.
truck runs good on propane.
can it be the injectors?
got a code 95(fuelpumpcircuit PCM to ground)
Jun 11, 2008 at 3:31 PM