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how can an adjustable fule pressure regulator break?

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Old 01-14-2003, 08:32 AM
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Car: 1991 Camaro Z28
Engine: 350 TPI
Transmission: Built 700r4
Axle/Gears: 3.73
how can an adjustable fule pressure regulator break?
What would cause an adjustable fuel pressure regulator not to work and would it not work all the time or just sometimes?
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Old 01-14-2003, 09:59 AM
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Car: 1982 Z28
Engine: LS1
Transmission: T56
Fuel pump on the way out.
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Old 01-14-2003, 10:10 AM
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The diaphram inside could crack or rip
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Old 01-14-2003, 02:16 PM
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Yeah, if the diaphragm goes, that regulator is toast. You'd be running at the WOT throttle setting all the time.
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Old 01-14-2003, 03:42 PM
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Car: 1991 Camaro Z28
Engine: 350 TPI
Transmission: Built 700r4
Axle/Gears: 3.73
well it doesnt run at WOT setting all the time so it must be the pump.
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