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Fuel Pressure bleeding off

This is a discussion on Fuel Pressure bleeding off within the General Help forums, part of the LSx Technical Help Section category; Originally Posted by spdecar Why not keep the regulator under the hood?... Would save everyone lots of headaches... That's what ...

  1. #61
    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by spdecar View Post
    Why not keep the regulator under the hood?... Would save everyone lots of headaches...
    That's what car manufactures used to do. My 92 Typhoon, 89 5.0 mustang, 88 Iroc, all have their fuel pressure regulators on the fuel rail. I'm sure there are many others. At some point they got this bright idea to start putting regulators in the gas tanks

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    Quote Originally Posted by spdecar View Post
    I feel your pain, I tried several V6 regulators off of old firebirds my buddy had, none worked like I needed them to. That/s why I ended bought a whole new assembly. (which will be coming out soon to have the sending unit swapped out with the original). Why not keep the regulator under the hood?... Would save everyone lots of headaches...
    Did you ever mess with the torx screw on the end of the FPR canister?

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    Spaz is My Mentor SMWS6TA's Avatar
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    Quote Originally Posted by Firebirdjones View Post
    That's what car manufactures used to do. My 92 Typhoon, 89 5.0 mustang, 88 Iroc, all have their fuel pressure regulators on the fuel rail. I'm sure there are many others. At some point they got this bright idea to start putting regulators in the gas tanks
    why charge for 10-20 mins of mechanic time when you can charge for 6-8 hrs when it's buried in the tank.

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    Veteran 0rion's Avatar
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    Quote Originally Posted by SMWS6TA View Post
    why charge for 10-20 mins of mechanic time when you can charge for 6-8 hrs when it's buried in the tank.
    you're forgetting that the dealership won't even do a regulator......they charge you umpteen million dollars for the whole module.
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    Quote Originally Posted by pajeff02 View Post
    Did you ever mess with the torx screw on the end of the FPR canister?
    I did not, Didn't even know it was there. What is it?

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    Quote Originally Posted by Firebirdjones View Post
    That's what car manufactures used to do. My 92 Typhoon, 89 5.0 mustang, 88 Iroc, all have their fuel pressure regulators on the fuel rail. I'm sure there are many others. At some point they got this bright idea to start putting regulators in the gas tanks
    Funny thing is, it is under the hood on the V6's.

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    Stock FPR is pictured on the right -- the torx head screw certainly looks like an adjustment, especially as it is "tamper proof". I found a thread in a V6 forum where it was indicated that tightening the screw increased fuel pressure.


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    Ok - finally found the correct FPR for our car on ebay. It arrived this morning and is in the car now.

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    Spaz is My Mentor SMWS6TA's Avatar
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    Quote Originally Posted by 0rion View Post
    that is a trick......he may have been able to take that whole rear section out in one piece since it was on a lift. Don't think you could do that on stands though.
    After placing on jack stands about 18-20" high, remove the tires, slide a floor jack under the diff, disconnect the brakes without removing the brake lines and hang, disconnect the shocks and LCA's at the axle, disconnect the sway bar, disconnect the e brake cable and then lower the rear. Remove the springs and then pull out. I've dropped my rear 6 times on jack stands over the last yr.

    4x for the 8.8 rear project, 1 for the tank to swap out the fuel pump & the one currently will be hopefully this weekend installing the 8.8 for the last time.


    Wrestling the fuel tank is best when it has little to no fuel in it. Gas weighs roughly 6.6 lbs/gal. 10 gals =66 extra lbs. Make sure you remove the gas cap or it will hang up and break.
    Last edited by SMWS6TA; 05-21-2014 at 11:20 AM.

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