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fuel pressure for 1990 Gt

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Old 03-29-2007, 05:51 PM
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p1bigun
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Default fuel pressure for 1990 Gt
having all kinda problems my fuel pressure is 30Lbs at idle and about 26Lbs at 4000rpm replaced filter already is pump bad or is these numbers normal
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Old 03-29-2007, 06:14 PM
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LTnone
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Default RE: fuel pressure for 1990 Gt
Those are extremely low numbers. Should be about 42psi with vacuum unhooked.
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Old 03-29-2007, 06:59 PM
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Go Roush
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Default RE: fuel pressure for 1990 Gt
I would say fuel pump getting weak.
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Old 03-29-2007, 07:51 PM
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p1bigun
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Default RE: fuel pressure for 1990 Gt
vacuum unhooked ????
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