I found the leak but need to know what the part is called, it's at the fuel rail on top passenger side and looks like a fuel regulator. it's on a 2000 olds alero with the 2.4L 4 cylinder engine. I looked up a regulator on the net and doesn't look like what I have. can you help me out here?
Scott From Indiana
Yes, this is the fuel pressure regulator. Mine is doing the very same thing ( leaking ) and tomorrow I am off to the parts store to get another. I posted a question elsewhere here about if there was anything that I should know about replacing this unit and I am still awaiting a reply. I do know that places like Advance Auto sell this little unit for around $65. I have seen it cheaper online, but I wish to not wait any longer ( can anyone say fire hazard ? ) and replace this ASAP.
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It is under the hood, on the passenger side, on the side of the strut tower, mounted in fuel line hose. If you are having a hard time finding it trace your gas line back from your injection rail/throttle body and you will run right into it, can't miss it.
if i recall the 3.5l engine had the habit of leaking fuel at front top of engine. it is a steel pipe that goes from one fuel rail to the other, the orings leak. just give it a little push down while running and if orings are bad it will spray fuel [stand to the side when doing this]
also the plastic fuel rails were known for cracking.
both of these concerns were recalled on some model years call local dealer to see if yours is covered. the 3.3l had a fuel rail recall as well.
reason i mentioned these is if there is a leak the gas will drain back to tank or slowly leak out so when you try to start engine it will crank longer because fuel pressure will have to build back up
The Lines are simple if it's a 2.4 EFI the lines run on the driver side inner rail from the center top of fuel tank, and up the middle of the firewall to the injector rail or throttle body carburetor there is also one line that runs from the evap canister back to the tank and to the fuel system three lines total one is a return line the large line is the main fuel line and has the fuel filter mounted on it and is under the driver side door inside the frame rail.
the fuel filter should be located on the passenger side frame rail under the car. look for a canister with a line going in and coming out with screw-on type fittings. if its not on the passenger side check the drivers side. i've changed them before i can't remember which side its on.