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Old 03-21-06, 11:12 PM
Ranger Ranger is offline
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Cadillac(s): White Diamond '03 DHS
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Join Date: Jun 2004
Location: Woodstock Ill.
Age: 61
Casino Cash: $24191
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Re: How to check for a faulty FPR (Fuel Pressure Regulator) and replace it

Check your fuel pump relay. Remove the gas cap. Put your ear to the filler pipe and have someone turn the key On (Don't crank). You should hear the pump run for about 2-3 seconds. If not, the relay is probably bad. In that case, the engine must build enough oil pressure to enable the oil pressure switch to override the relay and power the fuel pump.