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Re: how to replace a fuel pressure regulator
The fuel pressure regulator is on the end of the fuel rail it is held on by a torx screw relieve the fuel pressure using the schrader valve on the fuel rail remove regulator holding screw and replace new regulator be carful not to damage o-rings on new regulator
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first check the fuel filter. check before and after the filter if you get fuel before it then check after it, no fuel before go back to the pump. if you get fuel after then go to the fuel rail on the motor. open the line before the pressure regulator, if you get fuel then check after the regulator, if none after then the regulator is bad, if the regulator is vacuum assisted check your vacuum.
the fuel test port is right behind the power steering pump. You will see a black plastic cap right behind one of the power steering lines. Remove the cap and you will see the schreader valve.
The fuel pressure regulator is on the drivers side of the engine next to the throttle body right where the throttle cable is attached. there will be a vacuum hose on the top of it a steel line coming out of the bottom and there will be a single bolt holding it to the fuel rail. Remove the vacuum hose from the top, start the engine, and see if fuel comes out. If it does than the regulator is leaking and needs to be replaced.
Idle air control motor(IAC). EGR valve. And vacuum leaks to include the brake booster and if you have a plastic intake, that too. this is a start there are other things that will have the same symptoms. let me know
Release fuel pressure by removing fuel pump relay and turning engine over to release pressure. Place a rag to catch any fuel under regulator Fuel pressure regulator has a locking clip pry clip off remove vacuum line pull regulator out with twisting motion,replace fuel pressure regulator install clip connect vacuum line install relay. Check for leaks,your done.
ok if the fuel pump is energizing and you can hear it turn on then the pump is working fine and you probably have a restriction. i would replace the fuel filter. when you replace the pump did you replace the strainer on the pump? if not then thats where your problem lies. also could be the fuel pressure regulator also. there is a schrader port on the fuel rail try taking a pen and press down on the core to see if fuel squirts out. or connect a fuel pressure guage to the port and see if you have the right fuel pressure. it should run between 35 and 47 psi
Is it the 3400 v6 or the 2.2l four cylinder? If it the v6 then what you have to do is first know where it is. It located on the end of your fuel rail on the driver side of the car. There will be a plastic hose coming off the top of the regulator, unplug it. You then have to undo your fuel line that runs into the bottom of the regulator. You have to use a wrench to get it off, not sure what size it is. Once you undo the fuel line the next step is to unbolt it from the fuel rail. There will be two screws that run in the side of the fuel pressure regulator that are facing the driver side of the car and are threaded in towards the passenger side of the car, just undo those two screws and the regulator should come off. Just repeat the process backwards to put it back on.