![The FPR was dumping gas, so it was replaced with a [url=https://www.oreillyauto.com/detail/c/standard-ignition/fuel-delivery/fuel-injection/fuel-pressure-regulator/0ce0f00c815f/standard-ignition-fuel-injection-pressure-regulator/std0/pr234/v/a/4692/automotive-car-2003-pontiac-grand-am]Standard Ignition Fuel Injection Pressure Regulator PR234[/url]. The plenum gaskets didn't survive, so they were replaced with [url=https://www.oreillyauto.com/detail/c/fel-pro/gaskets/engine/intake-gaskets/plenum-gasket-set/b5c947bab82a/fel-pro-plenum-gasket-set/fel0/ms90505/v/a/4692/automotive-car-2003-pontiac-grand-am]Fel-Pro Plenum Gasket Set MS90505[/url]. Unlike most FPR failures which involve a diaphragm rupture leaking into the vacuum line & intake, this one leaked around the diaphragm and out the swages (both of them), probably due to the rubber being dried out & shrunken by the ethanol in modern gas. Hopefully, the replacement is designed to tolerate it better.
IF THE IMAGE IS TOO SMALL, click it.](https://www.supermotors.net/getfile/1169437/fullsize/fpr.jpg)
The FPR was dumping gas, so it was replaced with a Standard Ignition Fuel Injection Pressure Regulator PR234. The plenum gaskets didn't survive, so they were replaced with Fel-Pro Plenum Gasket Set MS90505. Unlike most FPR failures which involve a diaphragm rupture leaking into the vacuum line & intake, this one leaked around the diaphragm and out the swages (both of them), probably due to the rubber being dried out & shrunken by the ethanol in modern gas. Hopefully, the replacement is designed to tolerate it better.
IF THE IMAGE IS TOO SMALL, click it.
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