Announcement

Collapse
No announcement yet.

how hard to replace fuel pump?

Collapse
X
Collapse
Who has read this thread:
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • how hard to replace fuel pump?

    how hard is it replace a fuel pump on a 1991 firebird formula?

    i found a car that needs a new fuel pump but looks clean and seems like a good deal. i would mind peoples opions on it

    http://detroit.craigslist.org/okl/cto/1489200247.html ill offer him 1500$ thats it

    thanks for the help.
    HISTORY OF CARS PAST AND PRESANT (none of them were wrecked)

    1989 S10 standard with 350 carb'd, th350, shift kit, shorties, 600cfm, hooker TD's, 3.23 non posi, B&M shifter(sold)

    1991 firebird with t-tops and 3.1L, 700r4, 3.23 non posi, flowmaster cat back, 15ibs injectors, (sold)

    1991 formula with t-tops, WS6, 5.0TPI, WC T5. 3.42 posi. magnaflow cat back, 52mm TB, and hurst billet (sold)

    1994 camaro z28 with t-tops, 5.7LT1, T56, 3.42 posi. CAI, elbow, Airfoil, SFC, STB, pro 5.0, flowmaster cat back. (sold)

    2000 Trans am with t-tops, 5.7LS1, T56, 3.42posi, LT'S, ORY, magnaflow, lid, lingenfelter intake, 3pt SFC, STB, LCA, (current)

  • #2
    Its in the gas tank, so you either need to drop the tank to get to it or do a trap door method. Which involves cutting a hole in the car... Your choice either one is not very hard at all.
    sigpic
    1992 Chevy Camaro 25th Anniversary-SOLD
    1992 Chevy Camaro 25th Anniversary
    1997 Chevrolet Corvette

    The Original
    Originally posted by meissen
    I actually agree with Darren on everything he said...
    Originally posted by 81DaytonaPaceCar
    Yep, pretty much...not too often I agree 100% with Darren, but there it is...


    Comment


    • #3
      Not a bad job....you can knock it out in a few hours.
      sigpic
      Turbo Charged LS1/T56

      Comment


      • #4
        Originally posted by WMCCjames View Post
        Not a bad job....you can knock it out in a few hours.
        If you drop the tank and it is a MI car.... the time could double depending on how many bolts break.

        Comment


        • #5
          how hard is the trap door method?

          any input on the car? thanks
          HISTORY OF CARS PAST AND PRESANT (none of them were wrecked)

          1989 S10 standard with 350 carb'd, th350, shift kit, shorties, 600cfm, hooker TD's, 3.23 non posi, B&M shifter(sold)

          1991 firebird with t-tops and 3.1L, 700r4, 3.23 non posi, flowmaster cat back, 15ibs injectors, (sold)

          1991 formula with t-tops, WS6, 5.0TPI, WC T5. 3.42 posi. magnaflow cat back, 52mm TB, and hurst billet (sold)

          1994 camaro z28 with t-tops, 5.7LT1, T56, 3.42 posi. CAI, elbow, Airfoil, SFC, STB, pro 5.0, flowmaster cat back. (sold)

          2000 Trans am with t-tops, 5.7LS1, T56, 3.42posi, LT'S, ORY, magnaflow, lid, lingenfelter intake, 3pt SFC, STB, LCA, (current)

          Comment


          • #6
            I'm not sure if the 3rd gen trap door method is the same as the 4th gen trap door method. You basically just take a cutting wheel to your floor pan right above the gas tank and cut a square out just the right size to get the fuel pump out.
            - Brian Meissen
            Owner, MiFBody.com
            Administrator, LTxTech.com


            1994 Camaro LT1 Transplant - 357ci LT1, cammed, stalled, and driven.
            2022 Camaro LT1 - "Cherry Bomb 2"
            Michigan FBody Meet & Greet Car Show 2022
            June 4th, 2022 - 9am to 3pm!!!
            The HUB Stadium, Auburn Hills, MI

            Comment


            • #7
              It looks nice. I think the trap door is about the same as 4th gen. I'd go with that and avoid the bolts for taking it out the bottom. I'd even be pressing it thinking that perhaps you could throw an external holley pump on it, using the line feeding to the engine. With 3" exhaust, it may be loud enough to drown out the droning from the pump being mounted to the frame.
              sigpic

              Why the Hell do I have to press 1 for english?!


              Comment


              • #8
                The method is the same as a 4th gen but you might wanna look over on TGO to find the exact cutting specs... Like the measurements, I have seen it done on a thirdgen before and I know many guys over on TGO have done it I am sure there is a great write up thread over there. Prolly only a couple hour job.
                sigpic
                1992 Chevy Camaro 25th Anniversary-SOLD
                1992 Chevy Camaro 25th Anniversary
                1997 Chevrolet Corvette

                The Original
                Originally posted by meissen
                I actually agree with Darren on everything he said...
                Originally posted by 81DaytonaPaceCar
                Yep, pretty much...not too often I agree 100% with Darren, but there it is...


                Comment


                • #9
                  Originally posted by steddy View Post
                  It looks nice. I think the trap door is about the same as 4th gen. I'd go with that and avoid the bolts for taking it out the bottom. I'd even be pressing it thinking that perhaps you could throw an external holley pump on it, using the line feeding to the engine. With 3" exhaust, it may be loud enough to drown out the droning from the pump being mounted to the frame.
                  The only problem with that is that if the in-tank pump is failed adding an external pump in-line doesn't work
                  - Brian Meissen
                  Owner, MiFBody.com
                  Administrator, LTxTech.com


                  1994 Camaro LT1 Transplant - 357ci LT1, cammed, stalled, and driven.
                  2022 Camaro LT1 - "Cherry Bomb 2"
                  Michigan FBody Meet & Greet Car Show 2022
                  June 4th, 2022 - 9am to 3pm!!!
                  The HUB Stadium, Auburn Hills, MI

                  Comment


                  • #10
                    Not sure on 4th gens but on 3rd gens if you choose to do the trap door, you have to cut a really large hole because the fuel lines on the top of the tank are steel and run all the way over and down off to the side of the tank.
                    sigpic
                    Turbo Charged LS1/T56

                    Comment


                    • #11
                      Ah - that might be quite a difference then. The hole on the 4th gen isn't that hole (atleast in my opinion)
                      - Brian Meissen
                      Owner, MiFBody.com
                      Administrator, LTxTech.com


                      1994 Camaro LT1 Transplant - 357ci LT1, cammed, stalled, and driven.
                      2022 Camaro LT1 - "Cherry Bomb 2"
                      Michigan FBody Meet & Greet Car Show 2022
                      June 4th, 2022 - 9am to 3pm!!!
                      The HUB Stadium, Auburn Hills, MI

                      Comment


                      • #12
                        The trap door method is not a good Idea on a 3rd gen. The whole wooud need to be about 18-24" x about 3 feet to get the sender and fuel lines out.

                        It took me about 2-1/2 hour to change the pump in my Iroc and I droped the tank. Alot of people say you need to drop the rear to do it but that is a false startment. You need to remove the exhuast, Heat shield, panhard bar and the rigid support bar above it, and the pass side shock and spring. I not really the hard of a job.
                        Last edited by WMCC Gary; December 11th, 2009, 11:10 AM.
                        Western Michigan Camaro Club ~ President
                        1987 Camaro IROC-Z Pearl White & Black w/ Red Pearl, 355 TPI, A4, 3:42, AirRide,"GOMARO"
                        2017 Silverado Double Cab Z71 Pepperdust Metallic, 5.3, A6, 3:42, "SASYZ71"
                        2005 Pontiac Grand Prix GT White, 3800
                        WMCC Website www.wmcamaro.org

                        "A government big enough to give you everything you want,
                        is strong enough to take everything you have." — Thomas Jefferson

                        "Democracy will cease to exist when you take away from those who
                        are willing to work and give to those who would not."
                        Thomas Jefferson

                        Comment


                        • #13
                          I agree with Gary droping the tank is not hard at all, I recently dropped the tank outta my RS to replace it and like Gary said the rear does not have to come out to do so. I had to wiggle mine a little bit but it did drop out...
                          sigpic
                          1992 Chevy Camaro 25th Anniversary-SOLD
                          1992 Chevy Camaro 25th Anniversary
                          1997 Chevrolet Corvette

                          The Original
                          Originally posted by meissen
                          I actually agree with Darren on everything he said...
                          Originally posted by 81DaytonaPaceCar
                          Yep, pretty much...not too often I agree 100% with Darren, but there it is...


                          Comment


                          • #14
                            Originally posted by WMCC Gary View Post
                            The trap door method is not a good Idea on a 3rd gen. The whole wooud need to be about 18-24" x about 3 feet to get the sender and fuel lines out.

                            It took me about 2-1/2 hour to change the pump in my Iroc and I droped the tank. Alot of people say you need to drop the rear to do it but that is a false startment. You need to remove the exhuast, Heat shield, panhard bar and the rigd support bar above it, and the pass side shock and spring. I not really the hard of a job.

                            I learned something today

                            Comment


                            • #15
                              imo you should always drop the tank unless a previous owner already made a trap door
                              sigpic

                              Comment

                              Working...
                              X